Maria “Marianto” Camacho is a planner. At twenty-seven, she has her life perfectly mapped out. Her long-term boyfriend, Alejandro, is perfect on paper, and she's expecting a proposal any day now. She has a stable job as a lifestyle columnist at Ellas, one of Latin America's biggest digital magazines. Her future is set; she's sure of it.

Until everything falls apart overnight: Marianto loses her boyfriend and her job. But she's determined to get them both back with an idea that is either delusional or ingenious—a juicy new article for Ellas that documents a series of romantic experiments to get her ex back. Thus begins The Ex-Perimento. With her bank account dwindling, however, Marianto lands a temporary gig on Venezuela's hottest new singing competition show. Her job? Personal assistant to Simón Arreaza, the lead singer of her favorite indie band.

It's only her second day on the job when Simón discovers Marianto's list of romantic experiments, striking her ideas and replacing them with his own better ones. Out of desperation, she offers a proposition: Help her win back Alejandro, and she'll give Simón's band a profile in the magazine once she returns to Ellas. But between the close quarters on set and the blurred lines of a budding friendship, Marianto and Simón find themselves irresistibly drawn to each other, caught in a whirlwind of unexpected romance.