A notorious art thief called the Wildcat has ripped off another gallery in Mexico City. Magazine photographer Ann (Margaret Lindsay) spots a man stealing a painting from a frame and tells the police. The man, Brod (Ralph Bellamy) is supposedly a detective though Ann is unconvinced. She investigates Brod who she thinks is a shady customer. She gets him thrown in jail, but then is tricked and forced into helping him escape!
However, unknown to Ann, Brod is a real undercover agent and his arrest and escape was all staged in order for Brod to join the gang of the real Wildcat. But Brod and Ann are soon in real danger from the Wildcat and his gang of thugs as they prepare their next big heist...
A fairly complicated plot but a good one, this is a 1940s crime B-movie with a difference as it involved art theft and undercover work. Fast moving with good interplay between the leads and certainly plenty of charisma.