They say happiness as a couple has a timeline: seven years. And if a relationship is to have any hopes of survival, couples must survive past what psychology coins as the "seven-year itch." This is the premise behind the new FYI 60-minute, eight-episode reality series the "Seven Year Switch," set to premiere on July 7.

The network gathers four married couples who have reached a snag in their relationships and make them undergo what FYI describes as "an innovative experiment of switch therapy."

The switch therapy will have the four switching partners for a span of two weeks living with their experimental spouses to determine if they have chosen the right life partner or if it is maybe time to move on and start life anew separate from the person they married.

Relationship experts will be part of the show to guide couples in the switch therapy process and to help them adjust to their "new" spouses. At the end of the experiment, the couples decide whether it is happily ever after for them or if it is time to file for divorce.

The first trailer, posted by PEOPLE, shows that each of the participating couple are really hoping that the show can help resolve issues in their marriages. One wife talks about how invested she and husband Houston are in the relationship and seeing the experiment fail will be "a tragedy." Another wife says she believes that absence will make the heart grow fonder.

"Seven Year Switch" will premiere on July 7, Tuesday, at 9 pm with a two-hour episode that will introduce each couple and retell their love stories -- from how they met and fell in love to how the marriage took its turn for the worst.

"Seven Year Switch" is produced for FYI by Kinetic Content. Executive producers are Chris Coelen, Karrie Wolfe, and Cat Rodriguez for Kinetic Content plus Gena McCarthy and Liz Fine for FYI.