- Both dramas involve a male lead who has a dark past and a secret identity related to a psychopath.
- Both dramas feature a female lead who is a police officer and who falls in love with the male lead without knowing his true background. They don't get married in HE IS PSYCHOMETRIC though.

The differences:

- HE IS PSYCHOMETRIC has a supernatural element. The other male lead can read people's secrets through touch, hence the psychometry. FLOWER OF EVIL does not have any paranormal aspects.
- HE IS PSYCHOMETRIC is more light-hearted and humorous at times, while FLOWER OF EVIL is more serious and tense throughout.

I'm pretty sure anyone who has watched Hometown Cha-Cha-Cha was reminded of it while watching Welcome to Samdal-ri simply because they're both healing romance dramas set in a seaside village. They also both feature a female lead who moves from Seoul to the countryside after facing some difficulties in her career.

While watching "Welcome to Samdalri", I was reminded of "Call it Love" because the male lead's father in Welcome to Samdalri was against his relationship with the female lead because of the grievance he had with the female lead's family while in Call it Love, the female lead's family was against her relationship because of the grievance they had with the male lead's family. So, in both dramas the main leads had to struggle through these family issues and heal to finally be together.
However, "Welcome to Samdalri" is lighter and more heartwarming, whereas "Call it Love" has a more serious tone.
So, if you enjoyed the healing aspects of "Welcome to Samdalri," you might find "Call it Love" enjoyable despite its more serious tone.

Both dramas are romantic melodramas that explore the challenges and joys of love and they both feature a main couple with a significant age gap.

They're both 2023 dramas that feature leads who travel back in time from 2023, and get involved in the lives of their younger parents or relatives.

Both Mom Wow and Nothing but Thirty are Chinese dramas that focus on the lives of women in their thirties who face various challenges in their careers, families, and relationships. They both explore the themes of motherhood, female empowerment, friendship, and self-growth.

TOMORROW WITH YOU and WHERE STARS LAND both feature Lee Je-hoon as the male lead. They are also both romantic dramas with a sci-fi element. The two series have similar themes of fate, secrets, and sacrifice.

Both I’M NOT A ROBOT and WHERE STARS LAND star Chae Soo-bin as the female lead. They are also both romantic comedies with a sci-fi twist. The two series have similar themes of love, trust, and overcoming obstacles.

Lee Ji Hoon in both dramas plays the role of an ex who returns from outside Korea back to Korea, of course, to get back together with his ex (FL) who is trying to heal from the heartbreak caused the breakup. The FLs in both dramas however move on and fall in love with new men.

Dinner Mate, however, is more mature and ends up with dealing more serious matters like mental health and healing from trauma and heartbreak basically.

Doom at Your Service and Death’s Game are both fantasy dramas that star Seo In-guk as the main lead. They also deal with the themes of death.

The main characters in both dramas went through an ordeal that changed them, especially when the law fails them repeatedly. They decide to take matters into their hands to reveal the injustice in the world around them.

Both Korean dramas UNCONTROLLABLY FOND and TIME are melodramas that revolve around the theme of terminal illness and star-crossed lovers.