Hilda is fed up with her life as a gun moll to gangster Floyd and visits her mother, housekeeper for the cultured Randall family. Professor Randall and his wife go on vacation, leaving behind sheltered son Robert to embark upon a career as a reporter at Hilda's urging. Soon after, Benny, a feeble-minded flower vendor, follows showgirl Gladys Fontaine when Floyd forces her to join him on his houseboat to take Hilda's place.