SOLVED. Futuristic. They create a new model city where people who live there alternate monthly between the life/job they're assigned and living as a prisoner in jail. [s]

[Ana]

There's a couple living in their car after the US has gone through hard times. They decide to join this new project for a model city where you get a house, a job, a scooter?.. the only catch is every other month you switch with someone else and take their place in prison.
I remember there's something else about the people in charge making very realistic sex dolls. They can look like whoever the customer wants. Popular requests are Elvis Presley and Marylin Monroe?

[Empress]

Sounds fascinating. Is it The Heart Goes Last ?

Description seems to match perfectly, also there is this detailed article that might help.

[Ana]

Yes, that's the one! The Heart Goes Last by Margaret Atwood. Thank you so much. That was driving me crazy! :)

[Empress]

You are welcome. Glad to help.