Do Not Disturb (movie, 2016)

Anna's marriage is on the rocks after her husband John discovered she was having an affair with a much younger man. Confronted by her other half in the honeymoon suite of a Stratford-Upon-Avon hotel, Anna must try to save their marriage, deal with hapless hotel staff and come up with a plan to get through the experience. Unknown to either John or Anna, the suite’s bathroom is occupied by a semi-naked and comatose 21-year-old, who’s trying to sleep off a stag do.