The Nantucket wedding of The Perfect Couple Benji Winbury (Billy Howle) and Amelia Sacks (Eve Hewson) is supposed to be the #weddingoftheyear — if the mother of the groom, Greer Garrison Winbury (Nicole Kidman), has anything to say about it. But instead it’s over before the ceremony even starts, due to the untimely demise of one of the guests.

On the eve of the ceremony, the bride’s best friend and maid of honor Merritt (Meghann Fahy) is found dead, washed up on the beach of the Winbury residence. But was it an accident? Was it murder?

In Elin Hilderbrand’s bestselling beach read The Perfect Couple, Merritt’s death is, in fact, accidental. But director and executive producer Susanne Bier tells Tudum she likely “wouldn’t have done...