On a hot summer day, a bicycle is found in a wheat field - the exact scene of a crime committed 23 years ago, when a young girl named Pia was raped and murdered at this exact spot. Has the same thing happened now to 13-year-old Sinikka? Krischan, the retired police inspector who led the first investigation, is convinced that there’s a connection between the two crimes. His efforts to capture the killer back then were unsuccessful; this time, he is determined to bring him to justice together with his younger colleague David. While Sinikka’s parents are trapped in an agonizing period of waiting and uncertainty, their daughter’s fate rips open old wounds in the heart of the first victim’s mother. She, in turn, has the unsettling feeling that a visitor to her home - a nice young man, married with two children - is her daughter’s killer. As the days go by, an unbearable heat lies over the town’s modest homes like a bell jar. And behind the doors, once intact worlds begin to fall apart.