The Heroine(1967)

Connie Chan is 'Iron Gall' Ng Kar-bo, noble thief. Connie Chan is also Jenny, daughter of the tycoon Tung Yin-nin. The cops are after the thief, while kidnappers are after the daughter for ransom, and soon the two are mixed up and nobody knows who is who, and it's up to them to rescue each other and come clean.