Poirot Movie: "The A.B.C. Murders"

The Poirot Movie "The A.B.C. Murders" is interesting and the name makes you want to watch it. Here's the story:

When a mysterious letter from A.B.C. is sent to Poirot and a woman-Alice Aasha is found dead, Poirot starts suspecting A.B.C. murders. Sure enough, the next victim's name starts with a B, the next C, and then, D! As these A.B.C. murders go, Poirot thinks in vain. Who was the murderer? He almost gets tricked. But finally, he cleans out this case.