Rookie FBI Agent Sierra Knight follows her murdered mother’s footsteps in joining the FBI, determined to solve her cold case. Armed with a box of unsolved murder files, Sierra must hunt an elusive killer across years of history. But stirring up the past may just leave her to be targeted herself…

Retirees across the city are being murdered in seemingly unconnected crimes, but FBI Agent Sierra Knight discovers a heartbreaking thread linking every victim. Following Helena's notes, Sierra must stop a killer who views redemption as an unforgivable sin.

Published
July 23, 2026
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