Michael is a 'guardian angel' who appears when children need an invisible ('imaginary') friend until the birthday after his help worked. His charge from ages 5 to 10, would be-author Jane Claremont, is about to marry Tv series star Hugh Danderford. Now Michael appears again, but neither understands with which mission. He's in love with her, a new experience, gradually seduces her by being his irresistible, soul-mate-like self and becomes corporeal. She stubbornly claims toward him, Hugh and her best friend, a psychotherapist, to remain committed to Hugh.

Bruno wakes up in bed next to Caroline, his long time crush. But tomorrow she's off for school in France, and maybe she only granted this miracle as a parting gift for her long time friend. So tonight is Bruno's last chance. And tonight, as it happens, , her favourite band, is throwing a big outdoor bash. Maybe if Bruno, with the help of his best pal Blake, can score tickets and give Caroline a night to remember, he can keep this miracle alive.