17-year-old Lisa feels certain that she inadvertently played a role in causing a traffic accident that claimed a woman's life. In her attempts to set things right, she meets with opposition at every step. Torn apart with frustration, she begins emotionally brutalizing her family, her friends, her teachers, and, most of all, herself. She has been confronted quite unexpectedly with a basic truth: that her youthful ideals are on a collision course with the realities and compromises of the adult world.

Anna Paquin
as Lisa Cohen

J. Smith-Cameron
as Joan

Mark Ruffalo
as Maretti

Jeannie Berlin
as Emily

Jean Reno
as Ramon

Sarah Steele
as Becky

John Gallagher Jr.
as Darren

Cyrus Hernstadt
as Curtis

Allison Janney
as Monica Patterson

Kieran Culkin
as Paul