It’s Richie’s first day back at work after paternity leave, and Mitch and Alice are worried they won’t be able to cope without him. Richie is more worried about his idiotic new PA Billy (Jonny Sweet). After experiencing the First Day Back From Hell, Richie returns exhausted to the flat, only to get into an argument with Mitch for not appreciating his efforts as a domestic goddess. After the argument unexpectedly escalates into accidental violence, Richie discovers that only Billy can help undo the mess his home life has become.