One day, a gorgeous man appears in front of Gemma at her job. Tristan Marco, a mysterious billionaire, wants her to plan a party at a high-end hotel. And he's come all the way from Montovia, a country in Europe. Tristan invites Gemma on a cruise, and unable to resist his charms, she accepts. Though she's wary of the dangers of love at first sight, Gemma's heart is taken with Tristan, not knowing that he's actually the Prince of Montovia!