Do Not Disturb (2016)

Anna is recently separated from her husband John, following her affair with a much younger man. The estranged couple accidentally reconvene at the hotel where they spent their honeymoon. And while they try to build bridges, circumstances conspire against them in Britain's most shambolic boutique hotel. Their room is double booked, and a drunken stag party is on the loose. Cue arguments, and a naked best man asleep in their bathroom - which looks very bad for Anna, given her previous form. What happens next will either make or break her marriage for good. Can she manage to avert disaster?