The Departed Ending Explained
The Departed wraps up with a brutal chain of betrayals where no one comes out alive. Directed by Martin Scorsese, the movie follows two moles: Billy Costigan, an undercover cop in gangster Frank Costello’s crew, and Colin Sullivan, a mob rat posing as a top police detective.https://en.wikipedia.org/wiki/The_Departed
As the story races to its close, Costigan spots Costello handing Sullivan an envelope with info on his crew. Sullivan, sensing he’s being tailed, stabs an innocent guy by mistake and runs. He then tricks the police into following Captain Queenan, Costigan’s handler. Costello’s thugs show up, Queenan gets thrown off a roof to his death, and in the shootout, dying gangster Timothy Delahunt whispers to Costigan that he knows he’s the mole.https://en.wikipedia.org/wiki/The_Departed
Sergeant Dignam clashes with Sullivan and gets suspended. Sullivan digs into Queenan’s files and learns Costello is an FBI informant. A news report calls Delahunt a cop, but Costello thinks it’s a cover for the real rat. Sullivan calls in state police to chase Costello, sparking a firefight that wipes out most of the gang. Sullivan faces wounded Costello, who admits he’s ratting. They shoot each other, but Sullivan finishes him off.https://en.wikipedia.org/wiki/The_Departedhttps://nofilmschool.com/movies-where-everyone-loses
Costigan, his undercover job done, meets Sullivan to hand over evidence. He sees the envelope on Sullivan’s desk and realizes Sullivan is Costello’s mole inside the cops. Costigan bolts, Sullivan scrambles to erase his records, and Costigan drops evidence with his girlfriend Madolyn, including a tape of Sullivan talking dirty with Costello.https://en.wikipedia.org/wiki/The_Departedhttps://the-departed.fandom.com/wiki/Billy_Costigan
Sullivan pushes for a hero’s medal for the “dead” Costigan at his funeral. Madolyn, now pregnant, dumps Sullivan after hearing the tape. He gets home to find Dignam waiting, who blasts him in the head and walks away. The final shot lingers on a rat scurrying across the balcony, showing how everyone got played in this web of lies.https://en.wikipedia.org/wiki/The_Departedhttps://nofilmschool.com/movies-where-everyone-loses
This ending flips the script from the original Infernal Affairs, where one mole survives. Scorsese kills them all to hammer home the point that crime and corruption destroy everyone involved.https://en.wikipedia.org/wiki/The_Departed
Sources
https://en.wikipedia.org/wiki/The_Departed
https://www.independent.co.uk/arts-entertainment/films/features/movie-twists-best-films-all-time-b2887657.html
https://nofilmschool.com/movies-where-everyone-loses
https://www.youtube.com/watch?v=dBBLyoEM48I
https://the-departed.fandom.com/wiki/Frank_Costello
https://the-departed.fandom.com/wiki/Billy_Costigan
