Alan Ralston is shot to death and his wife Janet wounded inside their building parking garage. In hospital, Janet identifies the alleged attacker from a police photo. One witness questioned early in the investigation is Gil Himes, a business associate of Alan. Police eventually piece together that the crime was not a random act of violence by the identified attacker. Rather it was the intentional murder of Alan and equally intentional wounding of Janet. Stone tries to get one of the suspects to testify against the other.