A young woman's body is found stuffed inside a suitcase, and police believe that Mindy Keefe, the victim, was a train passenger on her way to Tampa when she was murdered. Detectives Benson and Stabler turn to Keefe's financier boyfriend, Owen Cassidy's yacht to investigate. However, Cassidy claims he was on his boat during the time of the murder. After further searching, the detectives discover Keefe belonged to an online dating website. But when the CEO of the dating website, Vance Shepard, refuses to comment on the case, the detectives turn to ADA Sonya Paxton for help.