the hole (2001)

martin, a young and introverted computer genius, is in love with liz, and to help her conquer mike, the boy she is infatuated with, he proposes to spend with him and two other schoolmates, geoff and frankie, three hidden days in a secret underground shelter. but the four realize they have been locked inside. time passes, the situation becomes hallucinatory until the door of the shelter opens. the only one to come out of it alive is liz, upset, bleeding and unable to shed light on the tragic fate that happened to her friends.