The Party Crasher - Grand Format

It's been almost two years since Effie's beloved parents got divorced, destroying the image of the happy, loving childhood she thought she had. Since then, she's become estranged from her father and embarked on a feud with his hot (and much younger) girlfriend, Krista. And now, more earth-shattering news : They've sold Greenoaks, the rambling Victorian country house Effie has always called home. When Krista decides to throw a grand "house-cooling" party, Effie is originally left off the guest list - and then receives a last-minute "anti-invitation." Effie declines, but then remembers a beloved childhood treasure is still hidden in the house.
Her only chance to retrieve it is to break into Greenoaks while everyone is busy celebrating. As Effie sneaks around the house, hiding under tables and peeping through trapdoors, she realizes the secrets Greenoaks holds aren't just in its dusty passageways. Watching how her family behaves when they think no one is looking, Effie begins to see them all in a new light. Then she runs into Joe - the handsome love of her life, who long ago broke her heart - and even more truths emerge.
Over the course of one blowout party, Effie realizes that she must confront her past before she'll ever be able to face her future.