A classic Agatha Christie short story from the collection The Witness for the Prosecution and Other Stories.

Every morning at the same hour on the golf course, Jack Hartington hears mysterious cries for help coming from a cottage. He speaks to the resident and learns that she has unsettling dreams of a woman with a blue Chinese vase. Believing that the cries for help are from the late Mrs. Turner, the former resident of the cottage, Jack hires a psychic investigator to spend a night in the house, a night which proves to have startling results...