After recovering from a near-fatal car crash Jennifer (Nina Ferrari) develops severe insomnia. Unable to sleep and feeling like she is losing her mind, she retreats with her husband David (Tyce Bune) to a relaxing Bed and Breakfast in the country on the advice from her doctor and finally gets a good night's sleep. Slumber comes at a price however and Jennifer soon finds herself sleeping with one eye open. Nothing is as it seems in Sleep Walker.