Tristan is deeply in love with his wife, Autumn. Every year for her birthday, he plans a special evening that always ends with an amorous adventure. This year he devises a decadent indulgence for the senses and invites a male friend to join in the fun. The surprise birthday threesome leads the husband and wife on an erotic journey of self-discovery and sexual satiety as they push boundaries and limits and dream to be DesireBound.