How to Be a Hitman (1970)

This crime drama is about Candy Price's struggle with Jimmy Jr, the son of Jimmy Falcione, aka Big Jimmy, now retired in Phoenix, and losing his mind to Alzheimer's, so his son is controlling operations. After a successful robbery, Jimmy Jr disrespects Candy for the last time. She snaps violently at Jimmy Jr, and now he wants her dead. Still, she tries her luck by running to Phoenix to ask Jimmy's dad for forgiveness, but Big Jimmy only sees her as a problem. Candy wants out, and now, finally will do anything to have her way. The outfit has no idea just how much heat Candy has in her.