Yukiyasha Legend Murder Case: File 2 - S2-E15
Stupidity: A world-famous painter known to be anti-social dies in a plane crash with other passengers in Hokkaido, Japan. The first responders are 4 reporters, one of which recognizes the corpse at first glance. They bury the body and one of them, on the spot and with no preparation, decides to impersonate him pretending to have burn marks on his face and going on wearing a surgical mask and a wig for 10 years. This has so many logical flaws; for this plan to work, the police had to never ask him anything, check his health after being the sole survivor of an airline tragedy, and the painter needed to have absolutely nobody who'd recognize his voice or know him at all.