Several young couples travel to a private island for a mysterious training retreat that promises to strengthen their relationship. However, during the Retreat, the heroes encounter an ancient demon - a Succubus. This monster feeds on the life energy of people, taking on someone else's appearance and provoking victims to show the worst qualities and do terrible things....
A legendary dog trainer believes he can transform Marmaduke from an undisciplined, but lovable dog, into the first Great Dane to win the World Dog Championship....
