Nicole lives with her sick mother who takes care of her. She works as a guard at a New York women’s prison. He promises to be promoted if he agrees to oversee Joan, one of the detainees, for 36 hours, on a trip to visit his mother on the deathbed. Joan has only six months to release from prison, but she is not willing to accept Nicole’s orders, she gives her a lot of headaches. The journey of the two is interrupted by the train’s delay. Nicole can not keep her in control Joan is afraid she will try to run away.