Marv's with forensics in the police force of a small town and though he's not a uniformed cop, he dreams of becoming one. After going beyond the call of duty in pursuit of felons, he has a terrible accident which knocks him out, but his life is saved by a mad scientist, Dr. Wilder (Michael Caton), who patches him up with the organs culled from his lab collection of goats, dogs, cats, horses and chimps. After detecting heroin by sniffing the rear of a passenger at the airport, Marvin is lionized, inducted into the police force as a full officer, and now possesses the confidence to introduce himself to a cutie running an animal shelter, Rianna (Colleen Haskell in her debut role). From then on, Luke Greenfield directs the human beast into a series of skits that could have been gleaned from Saturday Night Live, giving Schneider a chance to show off his considerable comedic talents.

Besides proving that we people are all animals, the movie demonstrates that human beings are not at all superior to our brothers and sisters in our own kingdom. When Marv takes on the dimensions of a seal, he saves the mayor's son; a dog, he sniffs out drugs and runs sixty miles per hour; a chimp, he swings from branches like Michelle Yeoh, eluding the cops, particularly his hostile and envious partner Sgt. Sisk (John C. McGinley).

If you like girl-next-door types as I do (Renee Zellweger for example,) you'll fall big for Colleen Haskell and in general you'll realize that when physical comedy stays within the bounds of reasonable decency, it can begin to approach the merits of the screwball comedies of the thirties that make the world forget the Depression for a while.