In a witty and insightful story about love, infidelity, and contemporary dilemmas, Katarina Žutić and Dejan Lutkić take us on an emotional and comedic journey of middle-aged couples. X + Y = 0 is a comedy that will make you laugh, touch your heart, and make you reflect. A story about love, infidelity, and the search for essence in the modern world. Text: Borislav Pekić. Director: Katarina Žutić. Cast: K. Žutić, D. Lutkić. Event Language: Serbian.