When the search for an abandoned orangutan leads to the death of their best man, primatologists Noel Rue and Lance Lakeland find themselves in a wedding quandary. Police suspect the ape, but Noel and Lance know better. They cannot call off or delay the big day, and they must juggle their search for the real killer with last-minute details like convincing half the family the wedding isn't cursed just because it's being held in a former funeral home. As the clock ticks down, they realize their best man was keeping secrets about the primate sanctuary and the pie-faced redhead now roaming its grounds. If they can't solve his riddles, Noel's parents may have to hold more than the wedding rehearsal without a bride and groom.