How to get out of this impasse?

My son is 24 years old. Circumstances so happened that we ended up in a village, and previously lived in the city.

He worked over the summer, now there is no work, and of course there is no money. We have a big house, but he lives in the bathhouse, sleeps during the day, and sits at the computer at night. Doesn't go anywhere and doesn't communicate with anyone.

When I want to talk to him frankly, he avoids the conversation. This is starting to scare me, but I don’t know what to do. And I myself am not in the best condition right now. The pension is small, there is no work, in general, complete poverty.

The man with whom I lived for 9 years simply ran away, but still I am more concerned about the condition of my son. He might have left, but where? I went to work twice, there was deception everywhere, they promised one thing, but in reality it turned out something else.