At the start of the episode, Kate Lawson's date (the first murder victim) drops her off at the radio station in a red Corvette convertible. Towards the end of the episode, when Hunter finds Lyle holding Kate hostage at her house, the same Corvette is in Kate's driveway.
At the beginning of the episode Kate (Erin Gray) takes a phone call from Michael from Santa Barbara. The screen show Michael, the engineer says Michael and when Kate takes the call she says "Mike" After the shooting they talk about Lyle as the one who was calling and stalking Kate and they refer to him as Lyle for the rest of the show.