The Talbots are having one last party at their family home. But Effie hasn't been invited... Effie's still not over her parents splitting up a year ago. Now they're selling the beloved family home and holding a 'house-cooling' party. When Effie receives only a last-minute 'anti-invitation', she decides to give it a miss. Until she remembers her precious Russian dolls, safely tucked away up a chimney. She'll have to go back for them—but not as a guest. She'll just creep in, grab the dolls and make a swift exit. No one will know she was ever there. Of course, nothing goes to plan...