Private investigator Sheba Shayne (Grier) returns from Chicago, Illinois to her hometown of Louisville, Kentucky, to confront thugs who are trying to intimidate her father Andy into dissolving or handing over his family insurance company business.

After a chase into a nearby amusement park, Sheba extracts a confession from a gangster named Pilot that the local gang is controlled by an insurance salesman called Shark Merrill.

After the gang does away with Pilot by tying him to a speedboat and dragging him through the water at high speed, they attempt to do the same to Sheba, but she escapes using a knife she had hidden in her wet suit to cut the rope.

"[3] Variety wrote, "Once you get past Grier's dazzling looks — and with coiffed hair, she looks better here than ever before — this is a flat suspenser kept unexciting by plodding pacing and poorly-shot action sequences.

"[4] Gene Siskel of the Chicago Tribune gave the film 1 star out of 4 and wrote, "The sound track occasionally misses lips, the dialog always is stilted, and the fight scenes look as tho they've been choreographed at half speed.