D.I. Cummings (retired) has Alzheimer's but is determined to finish his last unsolved case, if only he could remember where his keys were...
Bob's last case before retirement ended in failure. He knew exactly who was responsible for the disappearances of dozens of teenage girls but his evidence was destroyed by his incompetent son-in-law.
Twelve years later Bob is coming to terms with his wife's death and being diagnosed with Alzheimer's. When girls begin disappearing again he seizes the opportunity to finish what he began so long ago. But how do you uncover a serial killer when you can't remember what you had for breakfast and can't find your way back home?
When one of his own family go missing the investigation becomes a race to discover the truth before she becomes another victim.