I won't write a synopsis as the review says enough and anything else will ruin the story altogether.
Liam, Mikaela's second husband is a strong and giving character, deeply in love with his wife. When she is unresponsive to both him and her children, he takes a risky step that might, if it works, ruin his life.
It's a lovely, compassionate book, that I enjoyed very much. However, I thought that the end was just a little abrupt.
If you enjoy this book, you'll like Barbara Delinsky's The Coast Road, which is along the same theme. The difference being that the couple in it are divorced and the husband is desparate to win back his wife who is in a coma after a road accident.