Img_4391.mov
The lock isn't to a chest of gold, but to a "time capsule" room in an old library that contains letters written by your ancestors to you.
Option 2: The "Ghost" in the Machine (Best for family or pets) If the video features a pet or a loved one: IMG_4391.MOV
If the video is a simple shot of a street, a room, or a garden: The lock isn't to a chest of gold,