In Mexico City's  Cine Opera , lives a strange man named  Erick (Gerardo Vigil)   who wanders around the theatre and reads  Oscar Wilde  poems. No one seems to know that Erick lives in the theatre except a young boy who accompanies his mother while she rehearses a dance routine for an upcoming stage show. While Erick reads his poems and while the dancers rehearse, a psychopath is on the loose in the theatre. His victims are the female dancers who prepare to go home after rehe