The Birthday Weekend

In an opulent Irish coastal town, socialite Lucinda Oliver's fortieth birthday celebration takes a dark turn when she goes missing, leading to the discovery of her submerged car six months later. Her sister Stella gathers Lucinda's friends for the first time since the tragedy, hoping to uncover the truth behind her sister's disappearance. As secrets surface, Stella suspects one of the group may hold the key to unraveling the mystery, which ties back to a past birthday celebration a decade earlier.