Sunday Ninth (2026) is a Mystery, Comedy, Drama film that follows after years apart, brothers Horst and Franz reunite. Horst is dealing with Alzheimer’s, while Franz is in debt, and sees his brother’s unspent inheritance as the solution to his financial problems. When Horst’s former love Andrea, turns up, old wounds and a buried family mystery come to the surface, forcing them to confront their past. Sunday Ninth is not currently listed with streaming providers in your selected region, but availability can change over time. Fans of mystery movies may also want to explore similar titles below.