The main character of the thriller has an exotic name - Thursday - and a difficult life. She loves her husband very much, but, ironically, she only sees him... on Thursdays. Seth spends the rest of his days with his two other wives, whom Thursday has never seen and knows nothing about. One day, while washing her husband's things, she finds a note in her pocket reminding her of a meeting with a woman named Hannah. Intuition suggests that Hannah is one of his wives. Thursday did not want to break the agreement with her husband, but still tracked down Hannah and made friends with her. Hannah has no idea who she's dealing with. But the closer they get, the more they open up to each other. One day Hannah arrives with bruises and it becomes obvious that this is the work of her husband. This revelation is shocking because Seth has never been violent on Thursdays. Who is he really and how far is his wife willing to go on days other than Thursday? Will she risk her life to get to know him better?