Brady Hartsfield, perpetrator of the Mercedes Massacre, where eight people were killed and many more were badly injured, has been in the Traumatic Brain Injury Clinic for five years, in a vegetative state. According to his doctors, anything approaching a complete recovery is unlikely. But behind the drool and stare, Brady is awake, and in possession of deadly new powers that allow him to wreak unimaginable havoc without ever leaving his hospital room.

Retired police detective Bill Hodges, the unlikely hero of Mr. Mercedes and Finders Keepers, now runs an investigation agency with his partner, Holly Gibney, who delivered the blow to Hartsfield's head that put him on the brain injury ward. Brady also remembers that. When Bill and Holly are called to a murder-suicide with ties to the Mercedes Massacre, they find themselves pulled into their most dangerous case yet, one that will put not only their lives at risk, but those of Hodges’s friend Jerome Robinson and his teenage sister, Barbara. Because Brady Hartsfield is back, and planning revenge not just on Bill Hodges and his friends, but on an entire city.

In End of Watch, Stephen King brings the Hodges trilogy to a sublimely terrifying conclusion, combining the detective fiction of Mr. Mercedes and Finders Keepers with the supernatural suspense that has been his trademark. The result is an unnerving look at human vulnerability and up-all-night entertainment.