Set on a remote, windswept island off the coast of Ireland, The Guest List centers on the glamorous yet tension-filled wedding of Jules Keegan, a successful London magazine publisher, and Will Slater, a handsome television personality. The couple chooses The Folly, an isolated venue run by wedding planner Aoife and her husband Freddy. As guests arrive by boat, a fierce storm roars in and swiftly cuts off all communication with the mainland, turning the celebration into a claustrophobic pressure cooker where old secrets start to surface.
The narrative unfolds through alternating perspectives, weaving together the points of view of Jules; Olivia, Jules’s fragile half-sister and bridesmaid; Hannah, a guest and the wife of Jules’s longtime friend Charlie; Johnno, Will’s best man and childhood confidant; and Aoife, the meticulous planner guiding the day. Flashbacks trace the events leading up to the ceremony, revealing a tapestry of strained loyalties and buried histories among a tight-knit circle of friends and relatives. Olivia grapples with a recent trauma—ghosted and humiliated by Steve, a man she met online—and a painful abortion she faced in solitude. Her increasing withdrawal, especially around Will, casts a pall over the festivities. Hannah feels increasingly alienated from Charlie, who seems unusually drawn to Jules, while she mourns the anniversary of her sister Alice’s suicide, a tragedy linked to a leaked university video and a broken trust.
Johnno carries an interior weight of resentment from their school days at Trevellyan, where a brutal ritual and the taunt of a classmate nicknamed “Loner” or “Darcey” haunt him still. The friends recall a cruel game called “Survival” that once fractured their camaraderie and led to a tragedy they never fully acknowledged. These memories quietly braid through the present, threatening to rupture the wedding as it unfolds.
As the day advances, long-held truths begin to surface in sharper relief. It turns out that Will is not who he seems: his real name is Steve, and he has used a false identity with Olivia while secretly pressuring her to stay silent. Meanwhile, Hannah connects Will to a past that has haunted her in another way: he was the man who dated Alice in university and who leaked the intimate video that precipitated her death. The tension escalates with a stream of anonymous notes warning Jules not to marry Will, adding a chilling sense that someone among them knows more than they admit.
The reception reaches a fever pitch when the storm knocks out the power. In the darkness, a scream pierces the air, and when lights flicker back on, Will’s body is found along the shoreline, his death a stabbing that shocks everyone. Suspicion flares as secrets and motives come into view: Johnno learns that Will cut him out of a TV project they pitched together, Jules overhears Olivia and Will arguing about their affair, and the group confronts a web of lies that has kept them cleverly and dangerously entangled.
The truth finally lands with a devastating clarity: Aoife, the wedding planner and the sister of Darcey, whom Will and his friends watched suffer decades earlier under their cruelty, lured them to the island under the guise of a discount wedding, all to force Will to reckon with his past. In a moment of final reckoning, Aoife kills Will to avenge her brother, severing the cycle of guilt that has shadowed them for years. The narrative then settles into the aftermath, where Johnno initially takes the blame, overwhelmed by guilt for Darcey’s death and feeling that punishment is his due. Jules and Olivia begin to repair their bond, finding a renewed closeness after years of distance. Hannah and Charlie leave the island forever changed, with Charlie confessing an affair with Jules. In the wake of these revelations, Hannah and Aoife find some solace in the sense that their brothers’ deaths have been avenged.
The gathering—once a celebration of union—becomes a study in the heavy cost of secrets and the ways in which past actions echo into the present. The storm outside mirrors the tempest inside the group, as each character weighs forgiveness, responsibility, and the possibility of moving forward from a day that will be remembered for its irrevocable consequences. The affair, the betrayals, and the reckoning all converge on a single, brutal truth: in the shadows of a perfect wedding, the past always returns with a sharp, inescapable edge.
The event even features cameos by Lita Ford, Dee Snider, Don Dokken, and Daniel Biechele playing themselves, a surreal reminder that fame, memory, and myth often mingle in the most unexpected ways.
