Cave Instincts in the Big City

She is a successful realtor, a great fashionista, and a gossip. He is a bundle of instincts straight out of the Paleolithic. Her motto: there are no bad houses to sell. His: survive at any cost. But a little part of forgotten magic that he brought from the depths of centuries is very handy in her line of work. Can a modern lady convince a caveman to act together? Will they understand why they ended up together?