Miss Marple: Sleeping Murder (1987 TV Movie)

Geraldine Alexander: Gwenda Reed

Photos 

Quotes 

• Gwenda Reed : Why didn't *we* think of that?

  Miss Jane Marple : Because you believed what he told you. It's very dangerous to believe people - I haven't for years.

• Miss Jane Marple : There's always possibility of X.

  Gwenda Reed : X?

  Giles Reed : X?

  Miss Jane Marple : The unknown factor... someone who hasn't appeared yet but whose presence behind the facts can be deduced.