After Police Captain Dan McLaren becomes police commissioner, former detective Johnny Blake stages a confrontation to convince rackets boss Al Kruger of his loyalty, aiming to infiltrate the mob. However, 'Buggs' Fenner suspects Blake is still a police agent, leading to mounting tension. Cast: - Edward G. Robinson as Detective Johnny Blake - Joan Blondell as Lee Morgan - Barton MacLane as Al Kruger - Humphrey Bogart as Nick 'Bugs' Fenner - Frank McHugh as Herman McCloskey - Joe King as Captain Dan 'Mac' McLaren - Dick Purcell as Ed Driscoll (as Richard Purcell) - George E. Stone as Wires Kagel - Joseph Crehan as Grand Jury Spokesman - Henry O'Neill as Ward Bryant - Henry Kolker as Mr. Hollister - Gilbert Emery as Mr. Thorndyke - Herbert Rawlinson as Mr. Caldwell - Louise Beavers as Nellie LaFleur - Norman Willis as Louie Vinci Runtime: 82 minutes