Rachel Watson (Emily Blunt) relies on alcohol a lady who divorced her husband, Tom Watson (Justin Theroux), after it caught dishonest with their actual property agent Anna Boyd (Rebecca Ferguson). During their marriage, Rachel typically eat alcohol and have a self-damaging habits and even reached to lose consciousness. Rachel shares a flat along with her pal Cathy (Laura Prepon) and spends his days going by practice which, coincidentally or not, passes in entrance of Tom’s home, spying and Tom and Angela and their baby, Evie.
During his frequent journeys, Rachel turns into fascinated by his neighbors, Tom Scott (Luke Evans) and Megan Hipwell (Haley Bennett), a younger couple whom she believed to type an ideal household. In actuality, Scott is aggressive and authoritarian, whereas Megan is untrue and emotionally indifferent, having amorous affairs with quite a few males, together with her psychologist, Dr. Kamal abdicated (Édgar Ramírez). When sooner or later passes by, sees Megan Rachel kissing with abdicate and terribly indignant as a result of she thinks her marriage breaks “excellent”.
After one other escapade in alcohol, Rachel down from the practice to reproach Megan what she did, however loses consciousness and wakes up a couple of hours later at her dwelling, is stuffed with wounds. Later, Rachel learns from TV that Megan disappeared and is presumed lifeless, and he or she is interrogated by Sergeant Riley (Allison Janney) they deem suspicious due to violent habits. Because he doesn’t keep in mind something about what would have occurred in these hours and that has damage the physique, Rachel begins to analyze by itself Megan’s case.