A Deadly Invitation (2023)

Eccentric millionaire Olivia sends her half sister Agatha, and a group of old acquaintances, a mysterious invitation for a weekend on her yacht, where they will discover the true motive behind this invitation: the celebration of... a murder? Caught off-guard by an unexpected death, and with the help of a rookie policeman, Agatha will try to figure out if this is merely an accident or an elaborate plan for revenge.