A veteran jazz pianist (Walken) is mourning the death of his wife. His son (Kravitz), returns home with his own wife, disrupting the couple's careers as musicians in Europe to deal with the brilliant Sonny as his behavior becomes manic and destructive. The trio tries to present the illusion of a functioning family, as the eccentricities inherent in being working musicians leads them tumbling toward a tragic but impactful conclusion.