One sunny day the owner of a successful veterinary clinic Nikita learns that the terminally ill. He has no idea that this medical mistake, and seriously thinking: who takes care of his beautiful wife, children and business? .. And then comes into his head the idea that, sadly, it seems, it is time to look for a replacement. So - after a rigorous selection - the family home under the pretext of Sokolov populated fire Ilya, reliable man without bad habits. Nikita begins covert operation code-named "swap". And when Nikita learns that his health is not in danger, it's too late. .. Rasprekrasno Elijah already to love everyone, including patients veterinaries. The struggle for life, and love is just beginning.