Parents Pam (Ellie Kemper) and Jeff (Rob Delaney) are unhappily selling their family home since Jeff has been out of work in HOME SWEET HOME ALONE. At an open house, mom Carol (Aisling Bea) and son Max (Archie Yates) stop by, and Max and Jeff have an awkward encounter over Jeff's antique doll collection. When Jeff later realizes that one of the dolls is worth a small fortune, but then can't find it in his collection, he assumes Max stole it. Meanwhile, Max's extended family has left for a vacation in Japan and accidentally forgotten him at home. Jeff and Pam vow to retrieve the stolen doll from Max's house, but the boy believes they are out to get him and goes on the offense. Chaos ensues.
