The evening before Christmas eve, Vilde is hanging out with her friends at the central station, when she learns that her mother has been in an accident. She is forced to contact her biological father, but wants to run away to Tokyo.
After Frank The Fixer Tagliano testifies against his Mafia boss in New York, he enters the Witness Protection Program and makes an unusual demand: he wants to be set up with a new life in the Norwegian small town of Lillehammer or as he calls it, Lilyhammer.
Meet Dag, a couple's therapist who holds a 90% divorce rate. His philosophy in life is that people should live alone and he's happy to share that with his patients. Dag leads a quiet life and the only thing he loves more than his solitude is prescription drugs. However, Dag's peaceful existence is about to change radically when Eva enters his life.