An hour later, a rocket from Earth will arrive on Mars. Martians were eagerly awaiting contact with Earth civilization, since Martian civilization was fading, and only 900 inhabitants of the planet remained on the planet. True, as it turned out, the rocket sent from the Earth was quite unusual ......

Ignoring the time, Jack Breton crosses the parallel world to return Kate, a wife who was found raped and strangled in a lonely park nine years earlier. But in another stream of time, Kate marries her double John. And for one husband to remain Jack or John, he must die....

On Earth, a new generation of people has been brought up for life on Mars. Using a substance called daptin, the body of ten-year-old children was rebuilt in accordance with the environmental conditions of life on Mars. And then the day came when the children were brought to Mars, so that they began their life on their new planet ......