A collection of the year’s best mystery short fiction selected by New York Times best-selling and Edgar Award — winning author C. J. Box.

When Simon Johnson is attacked in his crummy LA apartment, he knows he must defend himself or die. Turning on the lights after the scuffle, Simon realises two things: one, he has killed his attacker; two, the resemblance of the man to himself is uncanny. Over the coming days, Simon’s lonely life will spiral out of control. With his pet goldfish Francine in tow, he embarks on a gripping existential investigation, into his own murky past, and that of Jeremy Shackleford, the (apparently) happily married math teacher whose body is now lying in Simon’s bathtub under forty gallons of ice. But Simon has a plan. Gradually, he begins to assume the dead man’s identity, fooling Shackleford’s...