The premise is implausible with a newlywed wife strangled for seemingly no reason. This occurs in a small town in Mexico. The chief of police knows who the murderer is but has no proof, so sends the young husband on a dangerous quest to get proof. He finds his wife's killer, who then kills him. So, two friends of the slain couple seek revenge for the slayings of the newlyweds. Ridiculous storyline and ludicrous ending.
Strangely, the killer, actor Albert Salmi, actually killed his wife in real life in a drunken incident. He had been physically abusive before.
Another Hitchcock episode features Gig Young, who ALSO murdered his wife in REAL LIFE in a drunken rage. What is it with Hitchcock and drunks who kill?
Have you ever seen a Hitchcock episode where cocktails or beer were NOT consumed? Very odd.