1932. After being left at the altar, free-spirited Ginny Weltermint boards a train and heads back home to Hollywood. But when she stumbles across a body in one of the carriages, she unwittingly becomes involved in a murder mystery. Stopping in a small village to investigate the crime, Ginny soon clashes with the surly, old-school detective who comes aboard to solve the murder. With the clock ticking, it's clear that there will soon...