Laura Linney has a supporting role in this gripping crime drama directed by Clint Eastwood. Mystic River follows the lives of three childhood friends, played by Sean Penn, Tim Robbins, and Kevin Bacon, whose lives intersect after a tragic event. Linney plays Annabeth Markum, the wife of Jimmy Markum (played by Penn), who becomes entangled in the investigation. The film is a haunting exploration of guilt, loss, and the impact of past traumas. Linney's performance adds depth to the complex web of relationships in Mystic River.