Earlier in he film, there were also "5 more Jason-styled murders" occurring in the week between Jason""s escape from the morgue and his arrival at Crystal Lake.However, Carter knew he was lying - due to being indebted to both Norwood and to his kin: ("I know how you""re fixed.As the train pulls into the station at Lake Como, a comforting (or sinister) hand reaches out to touch an agitated and confused Paula when she disembarks from the train compartment.This was Polanski""s last film made on location in the US.Writer Robert Towne""s screenplay was partially based on a true Los Angeles scandal in the early part of the 20th century (the story of the nefarious 1908 Owens Valley ""Rape"" and scandalous San Fernando Valley land-grab by speculators).