Head First (Tenir tête) tells the story of three people’s journeys into mental illness and back. Louis was the drummer of the band Les Sinners, a private detective and a drug addict. Frédérique is a talented but not always sensible photographer. Mathieu Arsenault is the filmmaker and a father, half angel, half demon. What unites them is their bipolar affective disorder. They have experienced the ecstasies of psychosis and the abysses of depression. They have found their way back after hitting rock bottom. Today, in full control of their lives, they tell their stories to fight prejudice and give hope to all those who struggle with mental illness, while the partners and family members who supported them tell their side of the story.