Showing Still Waters by Tami Hoag

When Elizabeth Stuart starts looking for a new home for herself and her son, somewhere she can recover from a particularly bruising divorce, Still Creek seems the answer to her dreams.

Hidden in the lush Amish farmlands of Minnesota, Still Creek offers a sanctuary to the splintered family who look forward to settling down there. But on their arrival the locals are distinctly cool to the newcomers. And when Elizabeth becomes involved in a murder case, she realises that there is a lot more to life in Still Creek than meets the eye.