From “Bad Boy” to bad behavior, Sean “Diddy” Combs’ life seems like a tabloid fever dream. A chilling new documentary promises to shine a red light on his alleged crimes, revealing tales of secret signals, underage victims, and drug-fueled “Freak Offs.” As the rapper sits in a grim Brooklyn jail cell, this exposé threatens to add more nails to the coffin of his once-gilded career.