Watch out for the hidden things . . . That's the last thing Calliope Jenkins's best friend says to her before ending a two a.m. phone call from Iowa, where he's working a case she knows little about. Seven hours later, she gets a visit from the police. Josh has been found dead, and foul play is suspected. Calliope is stunned. Especially since Josh left a message on her phone an hour after his body was found. Spurred by grief and suspicion, Calli heads to Iowa herself, accompanied by a stranger who claims to know something about what happened to Josh and who can— maybe—help her get him back. But the road home is not quite the straight shot she imagined . . .