Answer: obsessive-compulsive disorder
Explanation:
Obsessive compulsive disorder can be defined as a mental disorder in which there is a repetition of certain unwanted thoughts, sensations and ideas that make them feel driven to do something repeated. Certain kinds of behavior which are included in this disorder includes frequently washing hand, cleaning things repeatedly, interfere with another person daily activities.
Anthony is obsessed with the crime which he had conducted five years ago but he is in fear of the fact that his secret will not get reveal among his children thus related to this mental stress a compulsion of taking frequent showers in a day developed, although these showers will not wash away the sins he did in the past. Due to the symptoms the given situation can be considered as obsessive-compulsive disorder.