Every trope we publish for International Mystery & Crime, ranked by demand-signal mentions counted over the 28 weeks to 2026-09-07. 6,679 trope mentions counted in the lane in that window. Pick one for the full readout.
Changing the genre and pressing Check demand reloads the trope list for that lane. 3,851 trope-and-lane readouts, last counted 2026-09-16.
| # | Trope | Mentions | Share of lane | Direction | Tagged titles |
|---|---|---|---|---|---|
| 1 | Mystery / Suspense Element | 354 | 5.30% | Not called | 56 |
| 2 | Whodunit | 307 | 4.60% | Not called | 71 |
| 3 | Cozy Mystery | 185 | 2.77% | Not called | 3 |
| 4 | Police Procedural | 143 | 2.14% | Not called | — |
| 5 | Ensemble Cast | 119 | 1.78% | Not called | — |
| 6 | Plot Twists | 116 | 1.74% | Not called | 38 |
| 7 | Found Family | 113 | 1.69% | Not called | 345 |
| 8 | Locked Room Mystery | 106 | 1.59% | Not called | 4 |
| 9 | Slow Burn | 94 | 1.41% | Not called | 296 |
| 10 | Series Continuation | 81 | 1.21% | Not called | 3 |
| 11 | Unreliable Narrator | 77 | 1.15% | Not called | 22 |
| 12 | Procedural | 67 | 1.00% | Not called | — |
| 13 | Twist Ending | 66 | 0.99% | Not called | 6 |
| 14 | Spy Thriller | 66 | 0.99% | Not called | — |
| 15 | Page Turner | 54 | 0.81% | Not called | 2 |
| 16 | Character Driven Mystery | 45 | 0.67% | Not called | — |
| 17 | Espionage | 42 | 0.63% | Not called | 108 |
| 18 | Morally Grey Protagonist | 41 | 0.61% | Not called | — |
| 19 | Murder Mystery | 40 | 0.60% | Not called | 15 |
| 20 | Character Driven | 38 | 0.57% | Not called | — |
| 21 | Mystery Plot | 38 | 0.57% | Not called | 11 |
| 22 | Puzzle Mystery | 37 | 0.55% | Not called | — |
| 23 | Thriller | 37 | 0.55% | Not called | — |
| 24 | Serial Killer | 35 | 0.52% | Not called | 2 |
| 25 | Series Arc | 33 | 0.49% | Not called | — |
| 26 | Crime Thriller | 33 | 0.49% | Not called | — |
| 27 | Psychological Thriller | 32 | 0.48% | Not called | 13 |
| 28 | Detective Protagonist | 30 | 0.45% | Not called | 1 |
| 29 | Procedural Mystery | 29 | 0.43% | Not called | — |
| 30 | Political Thriller | 28 | 0.42% | Not called | — |
| 31 | Cat and Mouse | 28 | 0.42% | Not called | 8 |
| 32 | Character Growth | 27 | 0.40% | Not called | 9 |
| 33 | Historical Mystery | 27 | 0.40% | Not called | — |
| 34 | Detective Mystery | 26 | 0.39% | Not called | — |
| 35 | Fast Paced | 25 | 0.37% | Not called | 6 |
| 36 | Amateur Sleuth | 25 | 0.37% | Not called | 1 |
Direction is the change in each trope’s share of the lane between the last 12 weeks and the 12 before — never a raw weekly move. “Not called” means the two bands hold fewer than 30 mentions between them and we will not pretend otherwise. Tagged titles are counted across our whole registry, not just this lane.