"Mutter muss weg" is a German film that tells the story of a family in crisis. The mother, who is the central character, decides to leave her family and start a new life. This decision has a profound impact on her husband and children, who struggle to come to terms with her departure. As they navigate their new reality, they are forced to confront their own emotions and relationships. The film explores themes of family dynamics, love, and loss, and ultimately asks the question of what it means to truly be happy.