Story Structure — 5 Plot Phases
The Sardine Can Mystery
Sam Grunion's diamond investigation reaches a struggling theater troupe. Harpo steals a marked sardine can from the shop's diamond operation, triggering Madame Egelichi's pursuit.
Key Events
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Eleven-Year Diamond Search — Grunion has searched for the Royal Romanoff diamonds for eleven years. Characters: Sam Grunion
Location: Sam Grunion's investigation
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Investigation Reaches Performers — Grunion's investigation leads to a struggling troupe preparing a revue. Characters: Sam Grunion, Harpo, Maggie Phillips, Faustino the Great, Mr. Lyons
Location: Theater
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Harpo Helps at the Shop — Harpo helps shoppers while secretly pilfering groceries for the impoverished performers. Characters: Harpo
Location: Herbert & Herbert
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The Marked Sardines Arrive — Lefty tells Madame that the sardines have arrived and presents the marked can. Characters: Lefty Throckmorton, Madame Egelichi
Location: Herbert & Herbert
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The Sardine Can Switch — Harpo steals the marked can and replaces it with an unmarked one. Characters: Harpo, Lefty Throckmorton
Location: Shop basement
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Madame Orders a Search — After receiving the wrong can, Madame orders a police search for Harpo. Characters: Madame Egelichi, Lefty Throckmorton
Location: Herbert & Herbert
A Show Under Pressure
The troupe struggles to preserve its production while Faustino earns a place through improvisation. Harpo's connection to the sardine can brings him into Madame Egelichi's custody.
Key Events
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Faustino Requests Work — Faustino asks for a mind-reading job while the show's scenery is threatened with repossession. Characters: Faustino the Great, Mr. Lyons
Location: Theater
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Improvisation Saves the Show — Faustino's clever improvisation stops Mr. Lyons from repossessing the scenery. Characters: Faustino the Great, Mr. Lyons
Location: Theater
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Birthday Sardines — Harpo gives Maggie the sardine can, and she says she will eat the sardines tomorrow. Characters: Harpo, Maggie Phillips
Location: Theater
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Harpo Is Interrogated — Harpo is brought to Madame and refuses to talk during three days of interrogation. Characters: Harpo, Madame Egelichi
Location: Madame Egelichi's suite
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The Bicycle Horn Call — Harpo contacts Faustino with a bicycle horn while Madame listens on an extension. Characters: Harpo, Faustino the Great, Madame Egelichi
Location: Madame Egelichi's suite
Diamonds and Birthday Wishes
Madame offers to finance the revue after hearing Faustino's message. Harpo escapes, discovers the diamonds, and gives them to Maggie as a birthday gift.
Key Events
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Show Financing Offer — Madame arrives at the theater and offers to finance the revue. Characters: Madame Egelichi, Maggie Phillips, Faustino the Great, Mr. Lyons
Location: Theater
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Diamonds Found in the Alley — After escaping, Harpo finds the diamonds in the can set out for a cat. Characters: Harpo
Location: Alley outside the theater
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Harpo Comforts Maggie — Harpo plays the harp for Maggie and gives her the diamonds as a birthday gift. Characters: Harpo, Maggie Phillips
Location: Central Park
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Threat Before Opening Night — An agent of the Romanoff family threatens Grunion and gives him one hour to produce the diamonds. Characters: Sam Grunion
Location: Sam Grunion's office
The Necklace on Stage
An urgent threat forces Grunion to seek the diamonds as opening night begins. Maggie's necklace falls onto the piano, allowing Faustino to recover the real gems.
Key Events
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The Diamond Necklace Appears — Maggie puts on the diamond necklace while Lefty and the Zoto brothers spy through a window. Characters: Maggie Phillips, Harpo, Lefty Throckmorton
Location: Theater dressing room
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Necklace Drops on Piano — Maggie removes the necklace after a romantic exchange, and it falls onto the piano strings. Characters: Maggie Phillips, Faustino the Great
Location: Theater stage
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Faustino Recovers the Diamonds — Faustino strikes the piano forcefully, sending the necklace into the air, then pockets the real diamonds. Characters: Faustino the Great, Maggie Phillips
Location: Theater stage
The Rooftop Diamond Game
Harpo lures the pursuers to the roof while Faustino deceives Madame with fake diamonds. Harpo briefly gives the diamonds to Grunion, steals them back, and the final phone call reveals Madame's former marriage to Grunion.
Key Events
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Roof Distraction — Harpo distracts the pursuers with costume jewelry and leads them onto the roof. Characters: Harpo, Lefty Throckmorton, Faustino the Great
Location: Theater roof
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Fake Diamonds Delivered — Madame demands the necklace, but Faustino gives her fake diamonds while Harpo ties up the pursuers. Characters: Madame Egelichi, Harpo, Faustino the Great, Lefty Throckmorton
Location: Theater roof
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Harpo Reclaims the Diamonds — Harpo places the real diamonds in Grunion's pocket, then steals them back as Madame leads Grunion away. Characters: Sam Grunion, Harpo, Madame Egelichi
Location: Theater roof
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Unexpected Marital Reveal — Grunion says Harpo disappeared with the diamonds before a phone call reveals his wife is the former Madame Egelichi. Characters: Sam Grunion, Madame Egelichi
Location: Sam Grunion's office