By Ralph Novak
Updated November 20, 1989 12:00 PM

John Larroquette, Bronson Pinchot

What a semipro-baseball team in Ho-ho-kus, N.J., is to the Oakland Athletics, this movie is to Ghostbusters.

Pinchot, of TV’s Perfect Strangers, plays a sweet-natured psychic who channels with a nasty guy named Murray. Pinchot is also partners in a Boston detective agency with Larroquette (Night Court) and Stuart (Fatal Attraction) Pankin.

A running joke—maybe the joke—is that McGee has such a huge appetite he’s eating his partners out of business. Other considerations are that Larroquette, a compulsive womanizer, has eyes for Bess (Nothing in Common) Armstrong, a nun who doesn’t take her vows too seriously, and that Armstrong works for a cardinal who has been kidnapped.

Screenwriters Tom (Dead Poets Society) Schulman and Patricia (9 to 5) Resnick come close to the all-time record for most characters reacting to a development by saying, “Oh, s—-,” and the rest of their dialogue runs to lots of “Shut ups.”

Pinchot occasionally sprays out electronic impulses that use home-movie-kit kinds of special effects, and there’s a chase scene involving an airplane with its wings ripped off that drones on for quite a while.

Anyone determined to find something nice to say about this film would come up with Marisol (Bright Lights, Big City) Massey, as Pinchot’s romantic interest, who has an appealing, what’s-a-nice-actress-like-her-doing-in-a-place-like-this charm.

Otherwise director Joel Zwick, a 10-year TV veteran making his first feature, was remarkably consistent. If this were a TV movie, it would have a hard time getting scheduled on Sunday morning between “The Star-Spangled Banner” and “Three Stooges” reruns. (PG)