Pistol Whipped (2008) on Netflix

Plot summary

In Bridgeport, Connecticut, Matt Conner lost his job on the police force after money from the evidence locker went missing and suspicion fell on him. He gambles, drinks, and owes more than $1,000,000, and he hides those problems from his daughter Becky, who lives with his ex-wife Liz and Liz's husband, Lieutenant Steve Shacter. Matt talks things over at a Catholic church with his friend Father Joe Maloney. After a bad night at a poker game, a man named Blue takes him to meet the Old Man, who has bought up all of Matt's markers. The Old Man will wipe that debt clean if Matt does him a few favors, hunting down and killing the gangsters the police cannot touch. Matt agrees, though something about the arrangement does not sit right with him.