Mystic River ending explained: Two confessions, but which one is true?

Jimmy with his family
Mystic River won two Academy Awards. (Image via Warner Bros. Rewind)

When we hear about Clint Eastwood's Mystic River (2003), this is the first dialogue that comes to mind.

"Is that my daughter in there?"

It's unsettling, the emotions that Sean Penn's Jimmy Markum shows when he discovers the dead body is that of her daughter.

The film is about the investigation into Jimmy's daughter, who is found trapped and lifeless in a bear cage with a blow and a bullet in her head. But when you find out how she died, and it killed an innocent man too, you might be left with some tears in one eye and hatred for certain characters in the other one.

In the end, there are two confessions at the end of the film, one of them from a couple of kids and the other from Jimmy's friend Dave Boyle (Tim Robbins), whom Jimmy kills as soon as Dave confesses that he killed Jimmy's daughter. Dave wasn't lying.


It was a prank gone wrong in Mystic River

Sean Penn won the Best Actor award and Tim Robbins won the Best Supporting Actor award at the Oscars for Mystic River. (Image via Warner Bros. Rewind)
Sean Penn won the Best Actor award and Tim Robbins won the Best Supporting Actor award at the Oscars for Mystic River. (Image via Warner Bros. Rewind)

At the end of Mystic River, there are a couple of events happening in the film.

One is where Dave is at the bar with Jimmy and his family gang, who are trying to get him drunk, as Dave's wife, Celeste (Marcia Gay Harden), thinks Dave killed Jimmy's daughter, as he came back home the same night with blood on his clothes. She has shared this suspicion with Jimmy already; hence, this bar meeting.

The other sequence is at the home of Brendan Harris (Tom Guiry), boyfriend of the now deceased girl, who is questioning his brother, Ray Harris Jr. (Spencer Treat Clark), and his brother's friend John O'Shea (Andrew Mackin). Brendan knows that after he was investigated by the police that the bullet belonged to his deceased father's gun, which went missing.

At the bar, Dave is too drunk and excuses himself from the group as he feels uneasy and goes out for air. To ensure he doesn't run away, Jimmy and the gang follow him. This is where the game of truth and lies begins. Dave knows that Jimmy suspects that Dave killed Jimmy's daughter.

Jimmy tells Dave that they bury their sins here, at the Mystic River, and confesses he killed "Just Ray," who was an old friend and Brendan's father, because he ratted on Jimmy. After some talking and convincing Dave that they'll let him live following the confession, he falsely confesses in a desperate attempt to survive that he killed Jimmy's daughter. This happens, and Jimmy stabs Dave in the stomach.

In another scene, Brendan is questioning the two boys, which leads him to beat them. While he has beaten the pulp out of them, John O'Shea pulls out the stolen gun that belonged to "Just Ray" and points it towards Brendan.

Detectives Sean (Kevin Bacon) and Whitey (Laurence Fishburne), who are investigating the case, arrive and take the situation under control.

The next day, Jimmy is seen sitting on a sidewalk, drinking Jack Daniels, and Sean arrives to see him. All three, Jimmy, Sean, and Dave, were friends since childhood, which is established in the beginning, by the way.

Sean tells Jimmy that it was a prank gone wrong by those kids who killed Katie, Jimmy's daughter. Sean eventually realizes, following Jimmy's reaction after what he told him, and deduces Dave is no more.

Mystic River was released on October 15, 2003.

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Edited by Zainab Shaikh