I Care a Lot (2020)

Poised with sharklike self-assurance, Marla Grayson is a professional, court-appointed guardian for dozens of elderly wards whose assets she seizes and cunningly bilks through dubious but legal means. It's a well-oiled racket that Marla and her business-partner and lover, Fran, use with brutal efficiency on their latest "cherry," Jennifer Peterson - a wealthy retiree with no living heirs or family. But when their mark turns out to have an equally shady secret of her own and connections to a volatile gangster, Marla is forced to level up in a game only predators can play - one that's neither fair, nor square.

When Marla Grayson is on the phone with Sam Rice, he asks her if she has heard of the Milgram experiment, which references a series of social psychology experiments conducted by Stanley Milgram where subjects obeyed authority figures (i.e. giving electric shocks to people) regardless of possible consequences.

Marla is drugged and filled up with alcohol before being put into a staged car accident. Despite being made unconscious by the alcohol a few minutes earlier, she succeeds in escaping a sunken car, and then swimming out and walking to a shop where she only gives an indication of being cold.