Every morning at 8:30 Ruth Gibbons kisses her husband and son goodbye, and sets off for work. Every evening at 5pm, she finishes work, texts 'leaving now' to her husband Matthew, and begins her walk home. Every night at 5:40 she arrives home, kisses her husband and son, and has dinner with her family. Except tonight. Matthew thought he had a pretty normal life. A nice home, a happy marriage, a beautiful son, and a job he enjoys. Then it all changed. He informs the police that Ruth has not returned home, but decides to search for her himself as well. His first call is to her place of work, where to his disbelief nobody has heard of her. He begins to look further, and what he finds causes him to doubt everything he thought he knew about his wife, and to question his own sanity...