John is a regular player in the local swinger scene. It's an important part of his life that he tries to share with the women he meets. When he meets Jane, he's head-over-heels, and becomes conflicted whether to introduce her to his swinging lifestyle or give it up for good. Will his innocent younger brother Gary steer him in the right direction or help Jane accept John's lifestyle choices instead? Sweet Sinner brings you back into the lustful world of swingers, where the passions of the body and the desires of the heart should never cross.