In the fourth installment of the series, Max Mayfair's London club is thriving. He has just hired a handsome new head of security and an eccentric PR manager, when he is invited to Portugal by his longtime friend Paul. The Mister Mayfair team heads to Portugal for a relaxing vacation when Paul proposes a business venture to Max. Paul has opened a new hotel and wants to expand the Mister Mayfair brand to a new club in his hotel in Portugal. Mister Mayfair loves the idea of a new international club, but jumping into business with Paul could mean trouble for Max that could lead him back to his past as a gangster. Max Mayfair soon realizes that being in business with Paul could put many of the people closest to him in grave danger