When "Billy the Liar" kidnaps a young girl's dog, she calls on her friends and the local child sheriff. He sets off in pursuit but is waylaid by Indians but manages to capture Billy who is sentenced to a severe whipping.
100 miles north, a bit east and up, is Flåklypa... home of bicycle repairman Reodor Felgen and his two assistants - Solan Gundersen, morning bird and natural born optimist, and Ludvig who is a true pessimist.
There is a war in the world between the men and the women. A young girl tries to escape this reality and comes to a hidden place where a strange unicorn lives with a family: Sister, Brother, many children and an old woman that never leaves her bed but stays in contact with the world through her radio.
After spending decades living in the shadow of his more famous and successful sibling, Consulting Detective Sigerson Holmes (Wilder) is called upon to help solve a crucial case that leads him on a hilarious trail of false identities, stolen documents secret codes.