Poster for private Halloween event

A friend of mine wanted to create a theme maze at her house for the celebrations of Halloween. The concept was that several groups of people would enter an asylum. Through the maze, following steps and solving riddles they would try to find the exit. But in every corner fear and horror would wait for them.

The poster is inspirited by the concept. Keeping a minimalistic approach, it highlights the fear to the unknown.   
Thank you!