This is by far one of the best mystery JDramas I've ever seen. Often overlooked which is a great shame. Don't miss this one out! There are some amazing twist & turns with a very solid plot. Overall good acting with only one or two so-so characters but easily overlooked. There is really only one main theme running throughout the entire drama stemming from one main event that happens in the past but it manages to never be boring. I watched Triangle in practically one sitting. I just couldn't tear myself away. Each episode seemed really short even so it was the standard 45 minutes! I'm so glad I didn't ignore this one. I can't recommend this drama enough. Definitely worth the journey though & completely surprised me. The OST is seriously amazing too! I listen to it all the time. Great for having on in the background while working.