Crime lab expert Gordon McKay uses the latest forensic techniques to solve murders in a city plagued by political corruption and mob rackets.

First feature film from director Fred Zinneman is a snappy little "B" feature that features Van Heflin as the head of a city crime lab who solves the murder of the town mayor by analyzing evidence from the crime.—<[email protected]>

Gordon McKay (Van Heflin), a police chemist and his laboratory assistant, Jane Mitchell (Marsha Hunt), are interrupted in their work on a murder case by Gerald Ladimer (Lee Bowman), McKay's old friend, who has helped elect a mayor on a reform ticket. The new mayor is murdered while investigating Ladimer and his underworld connections.—Les Adams <[email protected]>