This plot tells an intriguing and psychological story centred on the relationships between the characters. Luisa accuses her husband Paolo of being a sex maniac and gets the police to intervene, but then develops a strange form of amnesia that makes her believe that the psychiatrist Alberto Spinelli is her husband. This confusing situation puts a strain on the lives of the Malpieri couple and the psychiatrist Alberto.
Alberto tries to help Luisa overcome her amnesia, while Paolo is jealous and wants to win his wife back. The situation is further complicated by the intervention of Luisa's eccentric aunt, who takes an interest in Paolo.
In the end, Alberto discovers that Luisa's real problem lies with Allegra, Paolo's young typist, and succeeds in getting her to recover her memories. Luisa had faked amnesia to punish Paolo for an alleged betrayal, but she eventually confesses the truth and the couple reconciles.
However, Alberto, who had fallen in love with Luisa during the therapy period, is left alone and sorry at the end of the story. The plot explores themes of betrayal, jealousy and forgiveness, with a series of twists and turns that keep the reader interested until the final resolution.