Back in San Franciso after solving his last case in New York, Nick and Nora find another case. Nora';s cousin Selma is accused of having murdered her husband, but for Nick it';s clear that she is not the murderer and he starts to investigate, supported by Nora and Asta.
當私家偵探Nick在紐約破了最後壹宗案後，他返回舊金山。Nick和Nora要處理新案件：他們的朋友Selma被責謀殺未婚夫,對於Nick來說，Selma肯定不會是兇手，在Nora和Asta的支持下，他開始進行調查。