Agatha Christie's Miss Marple

Miss Marple is a British television series based on the Miss Marple murder mystery novels by Agatha Christie. It starred Joan Hickson in the title role, and aired from 1984 to 1992. All twelve original Miss Marple Christie novels were dramatised. The screenplays were written by T. R. Bowen, Julia Jones, Alan Plater, Ken Taylor and Jill Hyem, and the series was produced by George Gallaccio.

The Body in the Library. Miss Marple assists her neighbours the Bantrys when a lovely young girl is found dead in their library. The girl is traced to a seaside resort and the desperate family of a wealthy old man.

The Moving Finger. Poison pen letters are being sent to everyone in town. It seems like a vulgar joke until a letter is found next to a suicide victim. Then another body is found, and another...

A Murder is Announced. A party game goes wrong and a young Swiss man is dead. Friends and neighbours start to turn on each other, and Inspector Craddock is stumped. Fortunately, Miss Marple is in town visiting her niece and helps solve the crime.

From Wikipedia