"Mentiders" tells the story of a family trying to survive atypical Christmas Eve.

Faraday is a weirdo telepath who is starting to lose his faith in the paranormal. His girlfriend, Diana, is a blogger whose highest aspiration in life is to be famous on the internet. When they decide to move in together they opt for a suspiciously cheap flat which turns out to be haunted.

Eight people eager to change the course of their lives come together in a castle to take part in a personal improvement seminar. When the seminar is not as big as planned, the members get to know each other very quickly. Their interactions help them to understand their individuality and show the others who they really are.