Your oc is an undercover cop (could go for either of our ocs or they can be partners I dunno) and they're investigating a new or old group or clan in town who's oc can be anybodys. You can decide how it goes from there. You and an oc had been close friends or more than that and one day they got into a bad argument (about whatever you want) and started avoiding eachother for idk how long, some time goes by and you accidentally run into them in an elevator and the elevator gets stuck so awkward I guess lol. I got one more-

Blep Oc lives in an apartment building and everyone there has to pay a protection fee, if they don't pay then their life gets claimed aka death, it's about that time of month to pay and theres banging at the front door for you (our oc or your oc can be the person who has to pay and your choice if the person is short on money or not)

If you do use the partners idea for the first one, one of them could get caught and the boss could try to force them in some way to tell who the partner is ig. This one is completely optional- And yw-