It may not seem serious to you, but I've got this mystery going on in my house. It happens at least once or twice a week. When I do the wash, after I take the clothes out of the dryer, I always seem to be missing at least one sock, many times even more.
Where do those socks go? They don't seem to be sticking to the other clothes. They're not in the washer or dryer. They've completely vanished. Is someone stealing the socks and going around wearing mismatched socks of ours? Why not take both instead?
Seriously, I did read once about a person who had someone living in her house each day while she was at work. She had no idea that this was going on. Apparently, somehow she caught on, but I don't remember how. Maybe a light was turned on where it shouldn't be, food was missing, an appliance wasn't turned off.
Anyway, it sounds like the beginning of a great mystery plot. Do you know of any mysteries taken from real life experiences, either partially or completely? Please share.