- K is for Killer
- Kabbalah
- Kaboul Express
- Kaffee, Kunst und Kaviar: Kriminalroman
- Kage
- Kahlgeschoren: Thriller
- Kalleni Beyond
- Kaltblütige Abrechnung, Todesläuten, Rasende Rache (Chefinspektor Wakolbinger und sein Team ermittel...
- Kalte Brandung
- Kansas City Noir
- Karma
- Karoonacht
- Kartelská
- Kasso
- Katerina Carter Color of Money Mystery Series Boxset
- Katerina Carter Fraud Thrillers
- Katrina Standoff
- Kawartha Christmas Caper
- Keep Me In Your Heart
- Keeper of the Flame
- Kein Entkommen
- Kein Verbrechen ohne Sühne: Thriller
- Keine Kompromisse
- Keine Kunst für Killer: 4 Action Krimis
- Keller's Fedora
- Kellers Metier
- Kelly's Law
- Kennedy’s Ghost
- Kept Women Can't Quit
- Khimera
- Kiaï
- Kickback
- Kidnap and Ransom
- Kidnapped Sorority Sister
- Kidnapped!
- Kilimanjaro Snow
- Kiliminjaro Snow
- Kill a Spy
- Kill Clock
- Kill Leader
- Kill Me Again
- Kill Me Tender
- Kill My Mother: A Graphic Novel
- Kill or Die
- Kill the Shill
- Kill The Story
- Kill Two Byrds
- Killarney Blues
- Killer
- Killer (Alex Delaware series, Book 29)
- Killer am Strand
- Killer Among Us
- Killer gesucht: 7 Strand Krimis - 1500 Seiten Spannung
- Killer im Verborgenen: Krimi Großband 12/2020
- Killer in Paradise
- Killer in the Rain
- Killer ohne Gnade: Thriller
- Killer ohne Namen
- Killer ohne Namen: Thriller
- Killer ohne Reue: Thriller
- Killer ohne Skrupel: Thriller
- Killer on Argyle Street
- Killer Pott
- Killer Secrets
- Killer Stories - 5 Thrillers For The Beach
- Killer Swell
- Killer Takes All
- Killer und Komplizen (4 Kriminalromane in einem Band)
- Killer von der Küste: Drei Krimis von Nordsee und Ostsee
- Killer Waves
- Killer zwischen Hamburg und Ostfriesland: Krimi Paket 5 Küstenkrimis
- Killer-Ferien: Vier Krimis
- Killerpfeile: Thriller
- Killers
- Killerschweine: 5 Strand Krimis
- Killian
- Killing His Fear
- Killing Mind
- Killing Mum
- Killing Schmidt Honorably
- Killing The Buddha
- Killing The High
- Killing the Lawyers
- Killing Them Softly
- Killing Time
- Killing Time: A Short Story Collection
- Killing to Know
- Killings
- Kindersucher
- Kindred In Death
- King Maybe
- King of Cool. Die Elmore-Leonard-Story
- King Suckerman
- King Zeno
- Kingdom of the Blind
- Kings of Midnight
- Kings of the Street
- Kinsey and Me
- Kinsey Millhone: First Three Novels
- Kirurgen
- Kiss and Cry
- Kiss of Death: Four Short Novels
- Kiss The Ladies Goodnight: (Jake Legato Private Investigator Series 1)
- Kiss Tomorrow Goodbye
- Klare Sache
- Klondike: A Game of Ears
- Knife Lake
- Knight and Dex