Directed by Christian Alvart, this German psychological drama focuses on the sudden unraveling of an orderly, middle-class family life. The story follows Katherine (Nadeshda Brennicke), a successful and seemingly contented woman married to Thomas (Mark Waschke). Her stable domestic routine is entirely fractured after an unexpected chance encounter on her daily commute with a charming stranger named Alexander (Mehdi Nebbou). The two are quickly swept into a deeply passionate, emotionally consuming affair. As the absolute fixation takes over, Katherine finds herself living a double life that forces her to confront the emotional vacuum hiding behind her stable marriage.