Marie, 80, is fed up with her illness. She has a plan: to go to Switzerland to end her life. But when the time comes to tell Bruno, her irresponsible son, and Anna, her teenage granddaughter, she panics and invents a huge lie. Using a mysterious inheritance in a Swiss bank as a pretext, she suggests they take a trip together. An unwitting accomplice in this masquerade, Rudy, a caregiver he'd just met the day before, takes the wheel of the family's old camper van and leads the family on an unexpected journey.