When a magazine journalist's life is threatened, Diana goes undercover as her assistant to protect her while Peter and Neal investigate the subject of the journalist's story: a crooked pharmaceutical company.

Peter and Neal are investigating a woman who's been married to several wealthy older men who died shortly after their weddings. They hope to get her by sending Neal into a bachelor auction hoping she'll get him. Peter goes with him and it's Peter whom she bids on. And when they learn that she has a partner, Peter has to keep seeing her which doesn't make Elizabeth happy.