1952: Bishop Bilodeau visits a prison to hear the confession of Simon, a boyhood friend jailed for murder 40 years ago. However, once there, Bilodeau finds himself forced to watch a play put on by Simon and the other inmates depicting the two men's youths. As the play progresses, the tragic truth of Simon's crime comes to light.
At a maximum security prison, there is preparation for the annual party where entertainers and strippers are scheduled to perform. But not everyone is having fun. A man is sent to solitary, his wife has a nervous breakdown, and a convict prepares to make a daring escape.
La Cage seems to be divided into two parts: a homosexual writer visualises his fantasies and a collective joins what seems to be the story of an encounter between two men.
