Though “Real World” returns to MTV’s lineup on January 15, the cabler has already offered fans a trailer for the upcoming season set in San Francisco.

This time, it’s seven strangers picked to live in a house, work together and have their lives taped…

Until their exes show up.

For the first time in “Real World’s” 21-year history, Bunim-Murray Prods. has overhauled the basic house reality show, ramping up the drama with the addition of ex-boyfriends and ex-girlfriends to the loft where new relationships are blossoming. The format change, MTV hopes, will bring auds back to the venerable unscripted program, which has seen a dip in viewership over the last several seasons.

Check out the trailer below. Will you be watching?