Annie Nolan is a poor, little waif who is overly dependent on men. Her father walked out on her and her mother, and ever since, Annie has wrestled with issues of self-esteem and autonomy. In her own world, it is as if Annie is self-imprisoned by her neurosis.
When Annie meets Craig Mitchell, he appears to be a kind cop and everything she has dreamed of in a man. But Craig is married, and Annie doesn't listen to her bestie, Julie, who recognizes that Annie is being trapped and exploited by Craig.
The filmmakers were successful in making credible the seemingly implausible scenario that Craig coerces Annie into killing his wife Wendy, so that they can be together. In the eye of the law, Craig is guilty of "solicitation of murder." Still, it was never quite convincing that she would carry out the murder.
The more successful strand of Annie's interior struggle was the guilt that enveloped her life as she tried to adapt to being a mom to the two orphaned Mitchell children, Dougie and Alisa. The guilt kept her confined in the prison she created for herself.
The most ghoulish moment in the film is when Annie discovers a loose shoe in the house that once belonged to Wendy. In a horrific scene, Annie tires the shoe on her foot, and the result is not that of Cinderella. Rather, the experience conjures up the deceased Wendy, driving Annie deeper into the vortex of emotional anguish.
It is fitting that the closing scene of the film is set in the jail house, where Annie's metaphorical bars have now become real ones. She is visited by the kind psychologist, Dr. Gayle Bennett, who had carefully drawn out a confession from Annie. For her part, the psychologist helped the young woman to discover a greater sense of autonomy that she will have time to explore during ten years in prison.