explain what is the story about

The story is set in England around the turn of the twentieth century. It opens with the elderly Mr. and Mrs. White and their son Herbert in their cozy family home one stormy evening. Father and son are playing chess while Mrs. White knits by the fire. From their conversation, it is apparent they are expecting a visitor. The visitor soon arrives; Mr. White introduces him as Sergeant-Major Morris. The major offers them a mysical Monkey Paw from India that can grant wishes. The story surrounds the "be careful what you wish for" motif.