Simone, Sipowicz, and Fancy are annoyed by the presence of retired cop Mike Roberts, who has been hired by the murder victim's father to keep a lid on his son's alleged homosexuality. Meanwhile, Costas lends a big assist to Russell and Kirkendall in their investigation of a teenage girl's rape, and Bobby Simone helps scare away the lowlife boyfriend of his dentist's daughter but is clearly not feeling well.