Matt Damon plays Bill Baker, an unemployed oil worker from Stillwater, Oklahoma, who flies to Marseille, France to visit his imprisoned daughter, Allison (Abigail Breslin). Allison has been charged with killing her friend Lina, and despite serving four years of her prison sentence, she is unwilling to prove her innocence. Her story with her father is tense as he has drug use, has a criminal record, and was mostly an absent father, but she relies on him to get a message to her lawyer (Anne Le Ny) if she finds out about a witness who can support their story.