Atrapados (1999)

When Hector leads Marcos to a room and only Hector comes out, and we see that Marcos is not there, but there's no exits in the room, We realize that Marcos has somehow disappeared. Marcos is now searching for something. Marcos seduces Lucy, a student. She is the key to something but we don't know what. This is a begining to a plot full of betrayal, suspense and fantastic facts, where reality is not what we see.