The Killer Is on the Phone (Italian: L'assassino... è al telefono) is a 1972 giallo film directed by Alberto De Martino.

Professional killer Ranko is to assassinate Dillon, a United Nations emissary sent to help reach an understanding between England, Arab oil suppliers, and the Seven Sisters.

Eleonor then starts suffering from amnesia, which reaches back five years to when Peter Vervoort, her lover, supposedly died in a car accident.

Because she recognised him, Ranko, who actually killed Peter, abandons his assignment and keeps following her, waiting for an opportunity to murder her too.

Dorothy takes Eleonor to her current home, where Doctor Chandler and theatre critic George await her, neither of whom she recognises, despite being married to the latter for three years.

Her actor colleague Thomas Braun- a former secret lover of hers- visits her at the hospital, where Chandler administers a truth serum to cure her.

George and Eleonor drive to the castle, where she remembers Peter holding a gun and threatening Ranko, who stabbed him and drove off with his body in the trunk.

She "returns" from her vision only to witness Ranko stab George and escapes by car, hiding in the deserted theatre.

[10] Author Adrian Luther Smith noted that The Final Curtain release had a particularly "poor quality dark transfer.

[1] Adrian Luther Smith in his book on Italian sex and horror films described the feature as "a fairly routine outing" with Stelvio Cipriani conrtibuting "a middling, but unmemorable score in keeping with the rest of the production.