Sirenen (2011)

Pål, a new employee in the office, is hoping for a quiet and serious work environment. But his stay does not go as he predicted. His new and rather strange co-workers use every opportunity available to get to know Pål and his past. With help from some rather absurd methods, they force Pål to go look for a mysterious tree that will help him move on with his life, the legendary Siren tree.