Synopsis by Hal Erickson
The duplicitous owner (James Coco) of a popular theme park engages Jessica (Angela Lansbury) to design a "house of horror". Shortly, thereafter, the owner is murdered in his underground office--an "impossible" crime, inasmuch as the office was securely locked from the inside. Inasmuch as the wife of investigating detective Lt. Donovan (James Stephens) is Jessica's niece Carol , it is perhaps a "given" that our heroine will take a hand in solving the murder. Incidentally, the two Donovan children are played by a very young Joaquin Phoenix (here billed as "Leaf") and his sister Summer Phoenix.