The film is set in a women's prison, where a group of female inmates are subjected to brutal treatment at the hands of the corrupt and sadistic prison authorities. The story follows a young woman named Kathy, who is wrongly accused and sentenced to prison. Upon arrival, she is forced to endure the harsh realities of prison life, including violence, rape, and humiliation.

The film shifts drastically in its second half when are temporarily transferred to the facility. They quickly overpower the guards and seize control of the prison, leading to a violent standoff involving torture, Russian roulette, and a bloody finale. Key Details Director: Bruno Mattei (credited as Gilbert Roussel).