Julia Roberts has signed on to produce and possibly star in the love story, Happiness Sold Separately for Fox Searchlight.

Based on the novel by Lolly Winston, the film centers on a woman who withdraws from her husband into a world of heartbreak and anger after she discovers that he had an affair with his nutritionist at the gym, notes The Hollywood Reporter. It tells the story of when people meet the wrong person at the wrong time and have to make it right.

Scott Coffey will write the screenplay and direct Happiness Sold Separately; no production schedule has been set.