On a hot summer day, a bicycle is found in a wheat field, and nearby, the body of a young girl. The killer is never found. 23 years later. Same date. Same place. Another bicycle. Another girl. This time round, an ageing detective convinced that history is repeating itself, comes out of retirement determined to track down the perpetrator with the help of his young colleague. Spanning a week in the investigation, both of them will begin a journey that will see intact worlds shatter apart.