The "Q" squad

An habitual criminal attempts to snatch Penelope Hayes' handbag, yet is apprehended and charged. Two months later, she's abducted and chloroformed - and again rescued by the police. This time her assailant escapes with her handbag. It seems that the wave of daring criminal gang robberies across London is somehow connected to Penelope's handbag - despite her denials that it contained anything of value. Then she disappears again - and the police have a murder investigation on their hands...