When the Spare Change Killer resurfaces after three decades they call on retired cop, Phil Randall who headed the original investigation and he calls in his daughter Sunny for help. She's sure she has found the killer but has no proof. When the next two victims resemble Sunny her father insists she drop the case, but she wants to create a trap to catch him.

"Robert B. Parker's beloved PI Sunny Randall returns on a case that blurs the line between friend and foe...and if Sunny can't tell the difference, the consequences may be deadly. When Sunny's long-time gangster associate Tony Marcus comes to her for help, Sunny is surprised-after all, she double crossed him on a recent deal, and their relationship is on shakier ground than ever. But the way Tony figures it, Sunny owes him, and Sunny's willing to...

Owing her landlord and former client a favor, PI Sunny Randall sets out to find Melanie Joan's stalker, but makes a discovery that challenges her loyalty to her old friend, while her aging ex-cop father is threatened by a sleazy lawyer with a desire to settle an old score.