"A string of overdoses in Colorado Springs has Detectives Joe Kenda and Lee Wilson on the lookout for a bad batch of heroin that has been cut with a drug they've never seen before. Meanwhile, at Springs General Hospital, Dr. Blair Moreland - the notoriously unpleasant head anesthesiologist - has found a way to feed his deepening addiction to the very same powerful new drug: fentanyl. But when Dr. Moreland starts supplying the dangerous painkiller to dealer Lula Lopez - planning to manufacture the drug himself - he angers a Mexican crime syndicate and sets into motion a cycle of death and violence that threatens to engulf the entire city. Detectives Kenda and Wilson must track down the source of this killer heroin before anyone else can overdose - and stop Moreland before he can escape the long arm of the law." -- Container insert.