According to star Jean Seberg's biography the actress was rather embarrassed to appear in this film because of its lurid subject matter. She only took the role due to financial matters.

Barry Stokes would subsequently play the very similar role of a male intruder in a exclusively female household in Norman J. Warren's 'Prey' (1977).

Like numerous other fictions of the 1960s and the 1970s, it is wrongly mentioned in the dialogue people affected with XYY syndrome would necessarily have criminal tendencies,

Two totally different endings were edited out of the same footage: a happy one, for the Spanish market, where the two heroines get away with murder, and an moral one, for the International market, where the dead young man and his belongings are found because of peas ironically growing out of the road.