A gifted cellist, Alex Serian, returns to Los Angeles after twenty years on the road. Now home, music - the constant, all-consuming river of his life - will carry him on an adventure that will change him forever. Tony Gilroy, the acclaimed writer-director of Michael Clayton, pivots from the precision of political thrillers to a volatile and - often wry - portrait of an artist with Behemoth!, starring Pedro Pascal, Olivia Wilde, and Will Arnett.
