This is an automatically translated description

Guests are gathering on an island off the coast of Ireland to celebrate a wedding. The groom is attractive and charismatic, the star of a popular TV show. The bride is smart and ambitious, the owner of a successful business. The exquisite celebration is thought out to the smallest detail and looks like it belongs on the pages of a glossy magazine: a designer dress, exotic landscapes, a giant tent, craft whisky…

But as the champagne is popped and the party gets going, old jealousies and resentments resurface time and again. Friendships get into wild games, the maid of honour nearly disrupts the celebration, and the groom's best friend makes an awkward toast.

And then someone is found dead. Who didn't wish the young couple good luck? And, more importantly, why?