Agatha Christie's Marple

Dolly Bantry enlists Miss Marple's help after she finds the body of a woman in their library. Then another body is discovered, and Miss Marple realizes that the roots of the killing go back to love, money, and loneliness.

When the vicar in Miss Marple's village declares in exasperation that anyone who murdered Colonel Prothero would be doing the world a favor, he does not realize that his words will come back to haunt him. The colonel, a most unpopular local resident, has a long list of enemies who become suspects when he is, indeed, murdered. Miss Marple, temporarily incapacitated after an accident, is perfectly positioned to investigate.

Two trains briefly draw alongside each other when Miss Marple's friend, Mrs. McGillicuddy, witnesses a man strangling a woman. When no body is found, the police decide she must have dreamt it; Miss Marple believes otherwise.

An advertisement announcing the date and place of a murder sets a village abuzz. A crowd gathers at the location when the lights go out and a gun fires. When the lights go on, one person is dead and another wounded.