20 Crime Solving Story Ideas

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  1-Charles McDougall, Scotland Yard's best Inspector, is laid up in the hospital with a badly broken leg, but that doesn't mean he's off the clock! An online news headline describing a tragic gas leak/explosion catches his eye. Four people died: a housewife, a minor politician, a young chemist, and the daughter of a local mobster. Somehow, using only clues from the internet (and what he can worm out of his coworkers), he has to figure out which of those people was the actual target, and why.  

2-Agatha Christoph (get it?) is a retired schoolteacher in a beautiful little town in New England. She never married and has no children, so her friends are everything to her. That's why when her best friend, Martha, is blackmailed with vague threats about some risqué photos from Martha's youth, Agatha jumps to the rescue. But Martha's youth was a LONG time ago. Who could have those photos? And what could they possibly want?


3-Mars is colonized, though there's no air outside the domes. Travel from dome to dome is by train. The Eberswalde Express is the "luxury" locomotive, filled with old-timey elegance and charm. It takes a day and a half between stops to give wealthy patrons full time to enjoy the amenities. AND WOULDN'T YOU KNOW IT...THERE'S A MURDER! Weirdly, this murder mimics the plotline of The Orient Express, and Elsa, a librarian and mystery buff, recognizes the details. With a murderer on board and nowhere to go, everyone is in danger. Can Elsa solve this murder before the killer strikes again?


 4- Ever heard the phrase, "It is not who fired the shot but who paid for the bullet"? This is a philosophy Tomoe Gozen lives by. Tomoe (who, by the way, was a real female samurai) serves her general well, but when a fellow soldier dies mysteriously one night after a game of Chō-Han, she can't simply accept that the death had no meaning. Brave and clever, Tomoe follows clues until she learns who ordered the murder: Emperor Antoku himself. But why would the emperor of Japan want to kill a lowly soldier? And why the subterfuge?  


 5- Medieval France. Fourteen-year-old Amée is a servant girl with a genius IQ stuck as a scullery maid in her fief lord's castle. She leads a lonely life, with plenty of time to think and analyze, though—and this is important—she can't read. But something strange is happening here. The fief lord keeps bringing new brides home... and within two weeks, those brides disappear. A new one—nearly Amée's age—has just been brought to the castle, and Amée knows the clock for survival has already begun to tick. She has time to figure this out. Will she before it's too late?  

  6-Omar Yehia is a colonel in Cairo's police department. The government is unstable, and the people are unhappy; he has his hands full with violent cases all the time. Unfortunately, one day, a slain prostitute turns out to have something on her person that no one in Egypt should have at all: Queen Mary's Crown . How on earth did she get that? More importantly, what will Omar do with the 48 hours his superiors give him to crack this case before they report this to foreign authorities?  


 7- Sandra is a mystery-lover. She sees mysteries and hidden conspiracies everywhere they aren't, and her sister Carrie laughs this off as a silly quirk... until Carrie is framed for the murder of the man in the next apartment. Carrie's DNA is somehow all over the place, though she swears she's never even been in that apartment before. No one thinks Carrie is innocent but Sandra... and she has a limited amount of time to prove her sister is innocent.  


 8- Twelve-year-old Alexandra is a leader. She runs her school's newspaper, manages three after-school clubs (the book club, the fencing club, and the junior stamp-collector club), and doesn't have time for nonsense. Which is why when she sees a man dressed all in black carrying a manilla folder as he climbs out of her principal's window, her determination to get to the bottom of it knows no bounds. Look out, data-thief. Here comes Alexandra!  


9-David is a senior software engineer for a major tech company, and he spends most days knee-deep in other people's databases, trying to figure out what they did wrong. One day, he happens across a piece of malicious code designed to steal financial information. He reports it and deletes it, but he comes across that same code again—in the database of a completely different company. He finds it again; and again. And the fifth time around, his manager drops a hint that the higher-ups think he's the best person to figure out who's planting it. Undercover, they send him to each of the company's data centers: one in London, one in Boston, one in Dallas, and one in Seattle. It's going to be his job—socially anxious as he is—to interview everyone and find out who's planting that code and why.


  10-General March hires Detective Thomas to try to find the person who's been blackmailing March for the past twenty years. Thomas tracks the miscreant down, but finds that the man behind the threats has been dead for the past ten years. So who's carrying on the blackmailing? And is the secret that's held March prisoner this long something that should stay a secret?  


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