Q Series: Close Your Eyes Before It's Dark (2016)

Very similar kinda feeling, if u liked one of them ur gonna like the other one.
They both are very similar to White Christmas, one of my favorites.
Story wise, a teacher kidnapps his students to teach them and the world a very important lesson.

You might like this one aswell, this one isnt really as thrillery as this but the friendships and the mood are very similar.
The story is a girl dies and her classmates start to find out the truth behind what happend and at the same time you see how each and every charater develops.

They both have a cast of unique characters solving a mystery in a location they can’t escape from. They also both start out somewhat slowly before delving into a story with plot twists and intrigue

These 2 are pretty similar in context, Close your Eyes being more story oriented.
Both are a good watch, enjoy.

Both shows have a group of people stuck somewhere without the possibility of contacting the outside world.
Both shows involve a group of people that have to solve and discover mysteries.
Both shows involve murders/murderers.
Both shows have unique storylines.

I really recommend to watch the other if u liked one of them.