The film stars Glenn Ford, Lee Remick, Stefanie Powers and Ross Martin.

Sherwood continues to be terrorized with phone calls, an asthmatic condition making the unseen Lynch's voice all the more sinister.

Lynch finally gives Sherwood a time and date to steal the money, and just to make sure that she does, he kidnaps her sister Toby and holds her captive.

The climax is a chase through Candlestick Park after a nighttime baseball game between the rival San Francisco Giants and Los Angeles Dodgers.

Following the Giants-Dodgers game filming, "Later the picture gang rented Candlestick to shoot reaction In the stands, hired about 1000 extras from the unemployed here—their take running from $25 to $50 a night.

Notwithstanding the fact that Candlestick Park is probably the windiest stadium in the country, the Hollywood company brought its own wind machines from the studios just in case the Giants home grounds disappointed.