Sam Spade - The Calcutta Trunk Caper (1947)

Sam Spade in "The Calcutta Trunk Caper" (1947) gets pulled into what seems like a simple job — talking a wealthy young woman out of marrying a charming but suspicious European adventurer. Naturally, nothing stays simple for long.

The case begins when a frightened woman hires Sam because she's convinced her sister's fiancé is a professional killer who marries rich women and then makes them disappear. Sam is sceptical at first, but the deeper he digs, the stranger things become. Before long he's caught up in a whirlwind of lies, hidden identities, and a mysterious trunk that keeps turning up at exactly the wrong moments.

Much of the story unfolds aboard an ocean liner bound for India, giving the episode a larger, more exotic feel than many of the series' usual San Francisco-based adventures. There are fake alarms, secret schemes, bodies that appear and disappear, and enough double-crosses to keep Sam guessing right up to the finish.

What makes the episode memorable is the mix of suspense and humour. Howard Duff delivers Sam's trademark wisecracks throughout, even as the situation grows increasingly dangerous and absurd. The dialogue is sharp, the pacing is fast, and the plot twists pile up one after another.

"The Calcutta Trunk Caper" is often regarded as one of the more entertaining and adventurous entries in The Adventures of Sam Spade, combining classic noir mystery with a touch of globe-trotting escapism and dark comedy. It originally aired on June 8, 1947 and remains a favourite among old-time radio fans.