Leading a double life as a fitness instructor and a prostitution ring with a client list, Sadie receives an anonymous tip and soon after her studio is raided by authorities, With only one question: who exactly was on the client list?。本剧改编自同名漫画,讲述了经营着乍一看没什么特别的冷清小店“海鸥旧书店”,背地里却打着“复仇者”的名号,作为“复仇者”暗中活动,替背负无法忍受的悲痛的受害者,对逃避法律制裁的加害者进行制裁…。