The screenplay was adapted from Charles Einstein's novel The Blackjack Hijack, published in 1976.

Just like he did in The Fugitive (1963), David Janssen plays a character here who had a stillborn baby.

The third and final time Stefanie Powers and David Janssen would work together, after Harry O: Second Sight (1974) and Warning Shot (1967).

At the time of this filming, Linda Evans and David Janssen were close friends and neighbors in Malibu. Linda's husband Stan Herman was one of David's old friends.