My Wife Is a Gangster 2 (2003) on Netflix

Plot summary

Cha Eun-jin is the boss of the Scissor gang, known as Silverfish. During a fight on a rooftop she falls from the building, and the fall leaves her alive but without her memory. Yun Jae-cheol, who owns a small Chinese restaurant, takes her in and she delivers food for him under the name Tsu Tsu, trying without success to remember who she was. On one delivery she is at a bank while three robbers hold it up, and she fights them off. The White Shark has returned to the neighborhood with his henchmen, and he intends to pull down the buildings around Yun Jae-cheol's restaurant and put up a mall.