Kelly and Sally met while they were at summercamp when they were younger.
The restaurant where Sabrina, Kelly, Bosley and Kris were is called Casa España.
Goof: When Kris leaves the restaurant through the rear parking lot, her car is backed into the parking spot but when Sabrina, Kelly and Bosley find her car there the following day, it is pulled in.
Goof: The exterior shot of the office shows Kris' car parked in front when in reality it is still parked behind the restaurant. At one point, Sabrina enters the office saying that she has just been to Kris' house and that her car wasn't there, which makes the goof all the more glaring since Kris' car is shown parked in front of the office.
Notice that this episode was shot at the same time that Angel Come Home was shot since the carpet, bar chairs and mirror behind the bar are the same color before the remodeling.
Notice that when the laundry guy comes out of the tunnel with Jill in the cart, it is the same one Jill ran into when she was trying to get away from Paul Ferrino in Angel Come Home.
Goof: Notice when Kelly hands Kris a note that says: "Lisa Blake didn't fall overboard by accident. Boiler Room - 9 o'clock."
Kris reads aloud "Lisa Blake did not fall overboard accidentally. Boiler Room - 9 o'clock."
This might not have been so obvious if Kris' voice when reading the note aloud hadn't been dubbed over on the close-up shot of her holding the note.
Goof: Notice when Kris goes into Mark's cabin, her staff hook is facing to the right but when the close-ups are shown, the staff is facing to the left.
Sabrina goes undercover as Sabrina Lampone, who has an uncle Vito.
This was Joseph Hacker's second episode in the series. He appeared in the 2nd season's episode Antique Angels as Nichols.
Kris goes undercover as a grad student from Olmsted College in Ohio in parapsychology.
Goof Notice when Dr. Slavin tape records Kelly's hypno session, the closeup shows that it is on the PLAY button.
Goof: Notice that Kris is in heels as she is walking through the house and when she steps into the sand but when she and Jill are jumping around together, she is in flats.
Goof: When Sabrina, Frank, Kris and Marty are in the speed boat chasing after the shooters, notice that when Marty turns off the fuel tank selector valve, he turns it from the empty starboard tank to the full port tank. When Sabrina asks "What is the thing," the gauge is in the correct position but when Frank comes over, he changes it from the full to empty tank.
After Kris has been kidnapped, while Kelly is walking around alone, the band in the background plays the anthem "Hammonia", which is the official state song of the Free and Hanseatic City of Hamburg (Germany).
Goof: Notice when Sabrina is driving to Nancy Coleman's, her collar is white but when she gets out, she is actually wearing a lilac jumpsuit.
Trivia: There's a sign outside the entrance of the Backwoods Inn that lists "The Lakso Trio" as the entertainers. This is an obvious reference to series writers Ed Lakso and his daughter Laurie Lakso.
Goof: Once Carol has been strangled, you can still see her breathing as the elevator doors begin to close.
Goof: As Kelly and Sabrina are standing by the door to leave Kris' house, Kelly is holding a small, mostly deflated orange balloon. After Kris says, 'Let me look around the beach for just a few minutes. She really needs the money,' the camera shows all three Angels and Kelly's orange balloon is significantly larger.