Granny's Gift. Rigsby, #7

When Granny's grandaughter dies giving birth to twins, a boy and a girl, she decides to give one to the dying girl's sister who had been wanting to adopt. The other to the biological father though he doesn't know about the child. All goes well until Bailey, now having adopted the boy, hears about Rigsby, Wyoming, and decides it's the perfect place to raise her child, not where he is now in New York.
She thinks there was only one bably and that the girl went home with her daddy to Rigsby. It is only after she moves there and people seem to see a resemblance, that Brad begins to think they are cousins, unknown to each other. It is a shock to discover the truth. While they are working that out, a young girl who has an obsession with Brad attacks Bailey and later sends someone she hopes will kill Bailey.
Brad insistes Bailey and the boy stay on his ranch where they are safer. Their regard for each other about the raising of the twins soon turns to love. That is when Marnie, the obseesed girl, sends the killer to the ranch. Will all that turmoil and history be too much for the couple to make a future together?