My film is a bit similar to the movie "Adulthood" the way a very close friend of a gangster dies and a gang are out to find and hunt the murderers. The gangster is out to look for the murderers. Then the gangster finds the killer, He then asks who else was involved in the murder to find out as much as possible. And just when the friend is about to get the answer a person shot murderer from the back, leaving the friend not knowing anything about the murder. There is also a flash back which the actor see's when he is missing his brother. In this flash back he see's how his brother was murdered by rival gangsters. By doing this it gives a hint to the audience and explains what this film is about.
Idea 2:
In this film, there's is an gangster who wakes up one morning and checks his wallet and there is nothing in there. It shows him getting ready and taking to his friend how he's going to rob someone today because he's ran out of money. Then he gets a person in headlock and tells him to give all the money and he punches him back but the gangster punches him even harder and gets the money out of him. The person who got mugged punches the gangster again and then gangster takes his gun out and shots him and run away.