While sketching one day, 13 year old Jo encounters a mysterious art dealer who buys a few of her drawings and commissions her to do some more. Some time thereafter she reads a news story about a million dollar sale of some drawings of a young Vincent Van Gogh. She enlists the aid of some friends and heads to Amsterdam in search of the mystery man. Or, should she go to 19th century Arles in search of Vincent himself?

A mysterious diver hiding in Amsterdam's canal system embarks on a rampage of gruesome murders, terrifying city officials and leaving few clues for the city's best detective, who doesn't suspect that both his new girlfriend and twelve-year-old daughter may be closer than he is to finding the killer.