Crime Fiction writing prompt

The Detective's Last Evidence

A retired detective receives an anonymous letter revealing the location of the final piece of evidence needed to solve their last unsolved case — a notorious bank robbery from a decade ago. The catch: retrieving it involves breaking into a crime lord's heavily guarded estate. Explore the moral dilemmas and physical dangers the detective faces as they consider crossing the line between law enforcer and law breaker.

Suggested length: A short story: 1,500 to 5,000 words, or flash fiction under 1,000

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Three ways to take this prompt somewhere nobody else will.

  1. End with the solution in a single line of dialogue.
  2. Plant the key clue in the first scene, in plain sight.
  3. Limit it to one location and one night.

Writing crime fiction

Not who did it, but why, and whether they'll get away with it.

Crime fiction covers any story built around a crime, and it's often told from the criminal's side. Where a mystery is a puzzle, crime fiction is about people: the pressures that lead to the crime, and what it costs everyone involved.

What readers expect

  • A crime at the heart of the story
  • Moral gray areas
  • Criminals as real people
  • Tension over who gets caught

A tip before you start

Give your criminal a reason the reader understands, even one they'd never act on themselves.

More about crime fiction in our book genres guide

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