The House at the End of the World. Life is a Story - story.one

Four people lived a normal life. Four people were mysteriously cut off from the rest of the world, and the only human contact that remains is the voices in the air - each other's voices.
An old woman, a man with a mustache, a teenage girl and a kid have to unravel the secret of their sudden circumstances and find the thing that connects them all - though along the journey some of them wish the answer they so fiercly wanted would have remained unknown just a moment longer.