A Good Marriage: Stephen King

This was a short story about a marriage that had a dark secret. One evening when Darcy's husband is away on business she goes to the garage for a battery and finds a hiding place of her husband's. Opening a box she sees IDs from a woman whose name is familiar, but she can't place it. She puts everything back and then it hits her, the woman was murdered and all over the news. After some research she realizes every time a woman was murdered by the mass murderer "Beatie", her husband was out of town on "business". After hours of restlessness she falls asleep to be awaken at 3am because her husband has returned home, about 17 hours early. He knows she knows and asks her what she is going to do about it. He claims he could never hurt her and explains that all his community service is to make up for his "wrongs" which he doesn't exactly see as wrong. Darcy keeps thinking about one of the women's sons who was also murdered because he came home from school too soon. Beatie claims all these women threw themselves at him teasingly and he got revenge. A couple months go by and Beatie wants to have sex. She can't bear the thought and when he comes up the stairs she pushes him back down. He breaks his neck and arm and she suffocates him before calling 911. Later a detective shows up at the door and knows what she has done. He tells her the case needs to connect her husband with the murders so the families of the victims have closure. He tells her the little boy had been sexually assaulted as well, but it wasn't reported on the news. Darcy is sickened. The investigator leaves telling her she did the right thing and that he won't expose her husband and leaves.