In May of 1946, Alcatraz inmate Bernie Coy initiates a carefully thought out plan to escape the island prison. His plan, carried out with five accomplices, falls apart when they can't obtain a key to unlock a door leading to the yard.

A white female detective is partnered with a black male detective to find the person who is committing a series of particularly vicious murders. During the course of the investigation the two begin to develop an attraction to each other, but the situation is complicated by the fact that he is married.