Nothing about cars is a mystery to Mary, but she’s only interested in one who killed her mother?Ten years after her mother’s murder, the case has gone cold, and she isn't ready to move on. She teams up with a detective, who seems to be her last hope.Mary's mother's favorite possession was a 1972 SS Chevelle. Someone murdered her while driving Mary to school. Ten years have gone by, and the police had no leads. When Mary learns the police aren't actively trying to solve the case, she decides to take matters into her own hands and solve the murder herself.Detective Ryan offers his assistance. In high school, Gunner Ryan was the popular guy, the quarterback on the football team, and he didn't give Mary the time of day– why was he willing to help now? Gunner had a thing for the beautiful Mary Kelly but never acted on his attraction. When Mary comes into the police station ten years later to inquire about her mother's death, he offers to help. He finds Mary knows more about the murder than she's letting on and tries to get her to trust him. A trusted employee was involved in her mother's murder. Mary follows him, hoping he will lead her to her mother's murderer. Mary's attempt for revenge backfires, and she barely escapes with her life. The murderer kidnaps Mary's father and Gunner to lure her into a trap. Mary takes the bait but doesn't arrive alone. It seems the whole neighborhood is fed up with the murderer and his gang and joins forces with Mary to bring them down.