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Creepy Fact #189

The blood in "Psycho" was chocolate syrup

For the shower scene in Hitchcock's 1960 film "Psycho", the fake blood was chocolate syrup, because it looked more convincing on black-and-white film.

October 15, 2026 · 2 min read · 4 sources

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For the shower scene in Hitchcock's ___ film "Psycho", the fake blood was chocolate syrup, because it looked more convincing on black-and-white film.

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Few movie scenes have made more people nervous about showering than the one in Alfred Hitchcock’s “Psycho” from 1960. Yet nothing scarier than chocolate syrup was flowing down that drain.

Why chocolate, of all things?

“Psycho” was shot in black and white. According to Popular Science, that was partly to save money and partly because Hitchcock thought blood in color would be too gory. On black-and-white film, though, what matters isn’t the color but how dark something looks and how it flows.

That’s where chocolate syrup wins. Its dark brown looked darker and more real on film than bright stage blood. It also has a similarly thick consistency. Hitchcock’s team applied it with a plastic squeeze bottle, a fairly new invention back then.

Which brand it was is disputed, though. Bosco is often named. But Marli Renfro, the body double for star Janet Leigh, remembered watered-down Hershey’s syrup, according to the BFI.

78 setups, 52 cuts

Filming the scene took about a week, roughly a third of the entire shooting schedule. The result: 78 camera setups and 52 cuts. A whole documentary is named after those numbers: “78/52” from 2017.

The trick: thanks to all those rapid cuts, the audience thinks it sees more than is actually shown. Your mind fills in the rest. Then there are the shrieking violins by composer Bernard Herrmann. Hitchcock originally wanted the scene without any music, but Herrmann talked him into it.

For the scene’s sound, the sound team tested different melons and finally picked a casaba melon because it sounded denser.

Small ingredient, huge impact

Hitchcock even banned latecomers from entering the theater. Anyone who missed the first minutes wasn’t supposed to miss the surprise.

More than six decades later, the scene still works. Not bad for a bottle of chocolate syrup.

The evidence

  1. 1BFI: 10 things you (probably) never knew about the shower scene in Psycho
  2. 2Popular Science: The spooky (and sweet) history of fake blood
  3. 3History: Psycho’s Shower Scene: How Hitchcock Upped the Terror—and Fooled the Censors
  4. 4Wikipedia: Psycho shower scene

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🎃 The golden pumpkin! Here is your secret Halloween fact:

The first jack-o’-lanterns were turnips. In Ireland and other Celtic regions in the 19th and early 20th centuries, people carved faces into turnips, sometimes potatoes or beets, and put a candle inside. It was meant to keep away the restless spirit “Stingy Jack”, who was barred from both heaven and hell. The National Museum of Ireland in County Mayo still keeps a plaster cast of a carved turnip from Donegal with “a pinched angry face”.

Source: Smithsonian Magazine