This is a very unusual story but many ever have thought of this unusual thing like me. When loved one died, we missed them so much and imagined what if they come back to us.
It gives lots of mixed feelings to me. People die and go to eternal world which is a heaven but these people want to live more in the earth but they are not meant to be so they look unhappy to stay in the earth.
Series 1,2 is marvelous.
However, Series 3 is horrible. Better not extend to series 3.