Horror Film ideas

For our first initial idea for our horror film we decided to go with Hannah’s idea, which was the idea of having four teenagers being locked in a house due to being told they were involved in a psychological experiment; which soon turns into a catasrophe. We discussed the idea with our Media teachers and were told that the basis of our idea of psychological experiments was a good idea but we should change the main idea of it.
We then went to do research of 'psychological experiments' and we came across a man who was obsessed with peoples facial expressions.
We developed this idea and came to idea of a man who kidnaps people and does experiments on them to compare peoples facial expressions. He would draw lines on their faces to measure facial muscles moving. He would torture them to test his experiment.