Mac, Det. Flack and Dr. Hawkes investigate the death of a model and an injured 20-something billionaire who were both speared by an arrow while hooking up at his party. Stella, who was attending the event as a guest, joins the investigation as the team works to discover who was the intended target--the playboy who is notorious for his conquests, or the model he had just met.

Meanwhile, Danny and Lindsay question a multitude of suspects when a music promoter is found dead, coated with glue and covered in the billboard posters of the band he was trying to break out.