For the Emperor (2014)

It is about an affair between an attractive thirty-two-year-old woman and a youth just short of legal majority. Interlaced with explicit scenes of love making, the movie watches the two lovers trying to come to grips with their mutual attraction, sexuality and societal disapproval.

A certain summer day, as the cicadas sing loudly. A man with no money and no place to belong tries to end his life, however is unable to take the last step. While wavering between life and death, he sees a gourmet food program on television, and realising he's never once eaten crab in his life decides that "For my last day on this Earth, I'll eat crab". Settings his sights on the wife who lives in a high-class neighbourhood that he happened across in a library, he forces his way into her home. And thus, he demands money from her, however things go in an unexpected direction.

Min Ki is also the lead in this one. A lot of blood and violence.
It's a dark-action themed movie about the lead who, because of a match fixing scandal, gets into trouble with shady loan sharks. He finds himself stuck in an amazingly violent underworld and sees no easy way out. He struggles with love and friendships because of his new job as a loan shark and ends up losing those near to him.

Here's the trailer: https://www.youtube.com/watch?v=_nIo7spkviQ

Three men, who look like winners in life, are in fact struggling with their own sufferings that they desperately strive to keep undisclosed - schizophrenia, sex addiction and infidelity. For these three childhood friends, the harder they try to get out of their agony, the more complicated and puzzled it gets.

Yi Hwan is a former professional baseball player. He was involved in fixing games and lost everything. Gang boss Sang Ha runs a money lending business and a gambling location. He makes Yi Hwan work for him. Meanwhile, Yi Hwan falls for bar owner Yeon Soo.

Aizawa Naoya is happily married to his colleague Kana but faces temptation to cheat on his wife when a new employee Tachibana Noa joins his branch and seduces him repeatedly with all sorts of antics. ~~ Adapted from the manga series "Anata wa Watashi ni Otosaretai" written by Miyaguchi Jun and illustrated by Umesuzu.

Kang Bok Gu is a tough guy and a K-1 Fighter. Bok Gu is a character who is dynamic in nature and grew up in a foster home. He falls in love with a woman whom he should not love. It was because of the woman, his emotionally-wounded brother fell off from the rooftop and became a nursing case. So, his love is forbidden and inevitably tragic.
The woman is Cha Eun Seok, who is a TV talent and movie actress. It was not that she jilted his brother on purpose, but upon a basis of misunderstanding, his hatred toward Cha Eun Seok grows more and more burning.
By becoming Cha Eun Seok's private bodyguard, Bok Gu keeps concretely practicing his revenge upon her. He only desires 'to bring his brother's woman to her knees. He is gradually taking Cha Eun Seok to destruction while he feels his love toward her growing deeper and deeper in his heart.
Bok Gu is a cold guy character without any special concern for women. The martial art of hand-to-hand fighting was just kind of his escape he chose from the shock of a spinster's death whom he loved from a distance.

A Ryong, a daughter of a giant Mafia group in Hong Kong, is wrongfully accused of killing the boss of Black Dragon, the biggest rival and is threatened to leave the country. Missing her mother, who had to leave the family for some reason, so deadly, she insists going to Korea, where her mother might be now until things get settled.

Arriving Korea, she is guided by Gi Chul, who is given a mission to protect her by his boss, but it's not easy for them to get harmonized. Meanwhile, an assassin named Yang Be is sent to Korea to kill A Ryong and there seems to be no choice for Gi Chul but to take her to his hometown disguising that he's got a wife. What will happen to this Chinese gangster wife?

Kim Byung Doo is a charming low-level gangster creeping up on 30 years of age. His youth rapidly fading, Kim has seemingly been on the cusp of making something of himself for years, his natural charisma making him well respected among his peers while a manipulative boss and string of bad luck has kept him firmly locked into his lowly status. When a wealthy industrialist approaches Kim's boss to eliminate a bothersome criminal prosecutor, Kim sees his long-awaited chance to advance and takes it. But all advancement comes at a cost.

Attractive leads with out of this world chemistry.
The quality of the acting is unusually high and intense, from every character.

Noburu is a handsome designer who draws a high salary and has a good marriage with Aiko, whom he much loves. That is until Noburu witnesses Aiko enjoying an affair with her boss and looking very happy. Feeling betrayed, Noboru decides to get revenge on his wife.

A model student transfers to the notorious Jungmoon High School known for its severe corporal punishment by teachers and power struggles between school gangs.

After graduating from the "New Emperor" high school, which was famous for its legendary fists, he receives a secret offer from an old friend. After entering the dark world, his hidden ambition awakens, and he is strongly attracted to Joo Mi Ran, the woman of the boss. If there's no turning back, we'll go to the end!

Both are blood pressure raising, convoluted thrillers. But For The Emperor has nudity and way more darkness and adult themes.

Kim Hyuk lives a fast life as a high-ranking mobster in the port city of Busan, South Korea. His closest friend is fellow mobster Lee Young Choon. Even though Kim Hyuk seems to be on top of the world, he is haunted by the memory of leaving behind his younger brother, Kim Chul, and mother as they attempted to flee into South Korea from North Korea. Kim Hyuk's mother was beaten to death, and Kim Chul was imprisoned after they were caught by North Korean authorities.

Kim Hyuk then travels to Thailand with new gang recruit Jung Tae Min for a meeting with Thai gangsters. The meeting turns out to be a set-up, planned in part by Jung Tae Min. Kim Hyuk is able to shoot his way out of the meeting, but he is later caught by the Thai police and imprisoned. When good friend Lee Young Choon hears of what happened to Kim Hyuk in Thailand, he goes to the Thai gang's holdout in Pusan to kill their boss. During the shootout, Jung Tae Min is shot in the leg.

Three years later, Kim Hyuk is finally released from prison and travels back to Busan. He finds his close friend Lee Young Choon washing cars now and has a limp leg. Jung Tae Min, the man that betrayed him, has climbed up the mob ranks and is now a feared crime boss. Furthermore, Kim Hyuk's younger brother Kim Chul has arrived in Busan and works for the Busan Police Department. Meanwhile, Kim Chul keeps close tabs on Jung Tae Min as he attempts to take down their gang.

When Jung Tae Min attempts to take out Kim Hyuk's younger brother, Kim Hyuk throws himself back into the gang world to exact revenge.