: A classic Agatha Christie-style mystery set on a commercial airliner where a bodyguard is murdered and a $2 million necklace is stolen, leaving a limited pool of suspects.

: In this high-tension episode, Serena Joy's betrayal of Fred Waterford is a major turning point. A key "suspicious" moment involves June letting a character die to protect her long-term plan.

If you are looking for major "suspicion-themed" episodes from other popular shows: