she mixes into William's toothpaste. The penicillin triggers a fatal heart attack, but his autopsy shows nothing unusual. Determined to bring Catharine to justice, Alexandra trails her to Hawaii, where she fled after William's death. In Hawaii, Catharine, going by the name Renni Walker, seduces Paul Nuytten, a French hotelier. Alexandra, posing as "Jessica Bates", enrolls in a scuba diving class Catharine is taking, and the two partner during lessons. Alexandra ingratiates herself to Catharine, and the two become friendly. However, after Catharine observes Alexandra and Mr. Shin meeting in public, she grows suspicious. Catharine subsequently learns from Sara that Alexandra interviewed her several months prior in New York. Several days later, Alexandra and Catharine go diving together, and Catharine saves Alexandra when her scuba gear apparently malfunctions. Catharine confides in Alexandra that she amassed her wealth from marrying rich men. She also encourages Alexandra to pursue Paul, whom she suspects has a crush on her. While Alexandra and Paul spend an afternoon alone at Catharine's encouragement, Catharine breaks into Alex's apartment and hires Shin to stalk her; he soon takes photos of Alexandra and Paul kissing. Confronting Alexandra with the photos, Catharine pretends to be upset. A short time later, Paul and Catharine are married. Alexandra arrives at the wedding and accuses Catharine of manipulating her. She gifts Catharine a black widow necklace. Catharine responds by kissing her. Later, Catharine visits Shin and, holding him at gunpoint, forces him to administer himself a lethal overdose of heroin. In Shin's office, police find the photos of Paul and Alexandra. While Catharine goes on a trip to San Francisco, Alexandra confronts Paul with her investigation against Catharine. Paul informs Alexandra that his will declares that his entire estate go to the Cancer Foundation. When Paul subsequently dies, police arrest Alexandra after finding poison Catharine planted in her apartment. At the reading of Paul's will, his attorney reveals that, because his legal state of residence was Florida, his bequest to charity is invalidated because it was made in the past six months. Catharine visits Alexandra in jail and taunts her. Moments later, Sara enters the visiting area, followed by Paul, who is in fact not dead, having faked his death to entrap Catharine. Catharine attempts to kiss him, but he refuses her, after which she is arrested. Cast Reception Film4 notes that Black Widow succeeds through Rafelson's "menacing direction" and Debra Winger's