Incredibly, unbelievably, Roman's cousin is marrying the cousin of Rosie
Taylor (AKA The Worst Person Who Ever Lived). Roman can't believe this
(as Rosie says: 'How can we be in the same family, we're barely in the
same species').
Rosie's parents decide they should go along together and 'make a weekend
of it'. Roman's plus one is his best friend Gamble (probably the
naughtiest kid in Europe) - and it's the beginning of another big,
messy, catastrophic and uproarious adventure for Roman - with
Winnebagos, illegal thrash metal festivals and campsite beauty contests
all thrown into the mix....