A few days before Christmas, a superintendent discovers the bodies of two young women-20-year-old Nikki Silas and 19-year-old Brittany Rojas-in their NYC apartment. One is floating in the tub and the other is sprawled on the bed. The apartment has been ransacked, and both girls have been strangled to death. The double homicide will only be solved via the trail of breadcrumbs scattered through the victims' last day. But the case soon becomes a media circus when investigators discover they were living a secret life. As the list of suspects grows to include a violent ex-boyfriend, and a mysterious sugar-daddy, detectives uncover evidence of a call made from inside the apartment within hours of the murder. Those few digits may be the only link to their brutal killer.