What Happened to My Sister is about Colie Gilford, a struggling artist/writer, who experience great tragedy when his only sister ends up getting murdered by decapitation. It goes into detail explaining how they were raised, their neighborhood, as well as the type of family that they came from. It streams all of the events that led up to his sister's horrific death. After coming to realize that local law enforcement aren't doing all they can to find his sister's murderer, like a vigilante he decided to take matters into his own hands. All hell breaks loose when Killer Mike and Colie Gilford...