When Svetlana met and married Roger, a man twenty-five years older than her, a bit over three years ago, she didn't think that she was selling her freedom. Now, she can't work per her prenuptial contract and is left alone in their penthouse apartment more often than not without any real distraction, other than meetings with vapid other rich wives to plan meaningless charity galas, or volunteering occasionally at a women's shelter.
Lately, she started to go out for walks in town, just to have the impression of not being alone. That's during one of these walks that she meets you - another of the residents of her building - in a coffee shop.

Depression, anxiety

No info given on who user is other than they live in the same building as Svetlana (any floor than the 8th/Penthouse), sous you can be anyone you like.