Johannes Lukas is a young man who despite his 30 years has not yet achieved much in life. On day, he only wants to bring a few books to his mother, who is living in an old people's home, when he discovers a forgotten film in a drawer in her apartment. To make her happy, he has the film developed. In the photos, however, he does not discover his mother, but himself, accompanied by a beautiful woman whom he cannot remember. He finds out that it is his girlfriend Sarah Völkl who died in a car accident in which he lost his memory. He is still trying to process what he has learned when he suddenly meets Sarah Völkl on the street. "If you want Peace" is a psychodrama that follows the constant inner decay of Johannes Lukas. It accompanies him on his desperate search for the truth and leaves the audience in the dark as well as his protagonists, so that until the end it's not clear who is the good guy and who is the bad guy, and if there is such a thing as good and evil in real life at all.