Ordeal by Innocence (1984)

A surprise visit from a stranger challenges a family's dearly held beliefs in the Miss Marple mystery Ordeal by Innocence (2007). Miss Marple (Geraldine McEwan) is attending a friend's wedding when an uninvited guest arrives and loudly proclaims that Jacko (Burn Gorman), the black sheep who was executed for killing the family matriarch two years before, could not be guilty of murder. This ruins the wedding, obviously, and the Argyle family is thrown into disarray as they try to find out who really killed their (admittedly) cold-hearted grandmother. You already know that Miss Marple is going to sort the whole thing out, so just sit back and revel in the SKINnocent suck sacks on co-star Cassie Stuart's chest. Hey Cassie, ever been tried by a hung jury?