The unexpected guests who drop by Vera's apartment include her ex-husband and his new girlfriend, as well as her nosy neighbor. As Vera struggles to hide the truth, she must also navigate the suspicions of Detective Samuels, who is investigating the disappearance of her ex-boyfriend.
Through a series of flashbacks, it is revealed that Vera's relationship with her ex-boyfriend was tumultuous and violent, and that she had been trying to end things for some time. When she finally stood up to him, a physical altercation occurred and he accidentally hit his head, leading to his death.
As Vera tries to cover up the crime, she is confronted with her own past traumas and must come to terms with the consequences of her actions. The film explores themes of abuse, trauma, and the lengths people will go to protect themselves and their loved ones.
An Imperfect Murder stars Sienna Miller as Vera, Alec Baldwin as Detective Samuels, and Charles Grodin in his final film role as Vera's supportive father. It is a psychological thriller directed by James Toback, who also wrote the screenplay based on his own experiences with a former girlfriend who was arrested for murder.