The American's Tale: Arthur Conan Doyle

Joe Hawkins and Tom Scott got into a row at the bar and Scott was about to kill Hawkins, but Hawkins was so drunk he couldn't get his gun out. Scott tells him he's going to spare the life of a drunk, but he should do something better with his life, Hawkins staggers out. The narrator who was drinking with Scott see's Hawkins outside under a plant waiting for Scott to leave the bar. No one expects to see Scott alive the next morning, However the next morning Scott is fine and no one has seen Hawkins. They are about to execute Scott for murder when Hawkins is unfurled from a huge venus fly trap sort of plant.