ThirTEEN Terrors (2014)

Both drama's have stories featuring around school. Might it be the teachers, students who are possessed or ghost stories from their past.

It's last episode is the same story with the same characters in there, but it has some differencies, as "The Blue Hour" looks more sensible and complete.

Thai horror dramas set at high school. Specially, ThirTeen Terrors' Wanida draws a lot of parallelisms with Enigma, since they have the same director. Like Fah, Vee and her friend are deeply drawn to the supernatural and when they heard about a curse at their school, they decided to investigate it.

Similar themes of school students in really strange situations. Watch with the lights on, though. THIRteen Terrors is not the teen centric lovey dovey teen drama, but a collection of some really scary, goose bump inducing, cringe worthy stories.

Both are pretty much the same in that they both tell stories of the macabre and creepy. Neither are really too scary and both are told in an anthology format- each episode is a different story with no connection to the other.

Similar themes of what is the afterlife, spiritual awakening, and revenge from another level.
The only difference is ThirTEEN Terrors is an anthology, with 13 different stories.

A lot of the same characters are in it. They are different genres though. Hormones is a teen drama, but there is nothing scary in it.

Both are horror series and each episode has a different and chilling story plus all the stories take place in schools in Thailand