When Kevin Harrington goes to the assisted living facility and is searching through the sign in book for info when the former abusive prison guard comes to visit his wife, the book shows that he visits on every Friday at 12 pm. The first sign in he finds is dated Friday Sept 12th and the following week he signs in is dated Friday Sept 20th. This is a mistake, it should have been dated Friday Sept 19th. There are 7 days in a week not 8.