After narrowly surviving a crash, race car driver Helen (Carroll Baker) gets a letter from her gigolo ex-husband Maurice (Jean Sorel) suggesting she come down to his villa on the Riviera to recover. She arrives to discover that he has married the rich Solange (Lisa Halvorsen). It seems that not only does Maurice want to continue their relationship but Solange is also interested in Helen. Solange reveals to Helen that it was she who wrote asking her to come and that she wants Helen to help her kill Maurice. Things do not go exactly as planned due to some double-crossing which is then further complicated by a judge-playing-detective (Luis Davila), a possibly-incriminating roll of 8mm film, and the arrival of Solange's inquisitive daughter from a previous marriage Constance (Anna Proclaimer). Not to be confused with Lenzi's ORGASMO (1969) also with Carroll Baker which was released in the US with an X-rating as PARANOIA, this PARANOIA (1970) was subsequently released in the US as A QUITE PLACE TO KILL (again, not to be confused with Lenzi's UN POSTO IDEALE PER UCCIDERE which was released in the states as DIRTY PICTURES and is better known as OASIS OF FEAR) and is one of a quartet of provocative jet-set giallo thrillers directed by Lenzi starring Carroll Baker (and capitalizing on the Hollywood starlet's now rather tame nudity) that included the aforementioned ORGASMO, KNIFE OF ICE, and SO SWEET SO PERVERSE (along with THE SWEET BODY OF DEBORAH - also featuring Sorel - from the same production team but directed by Romolo Guerrieri). Guglielmo Mancori's Techniscope photography zips and zooms across the Majorca locations (the film also recycles the memorable Weiss and the Airdales song "Just Tell Me" previously heard in ORGASMO for a zoom-happy nightclub scene).