Samantha Kingston lo tiene todo a su favor: es guapa, es popular y sale con el chico perfecto. El viernes 12 de febrero deberia ser un dia mas en su facil vida, pero no lo es: es el ultimo dia. O mas bien los ultimos, porque Samantha se despierta una y otra vez en la manana del viernes 12 de febrero y vuelve a vivir la misma jornada siete veces hasta que se da cuenta de que en su mano esta realizar cambios minusculos que supondran diferencias enormes. Imagina...

In the poor town of Carp, New York, a teenage group enters a high-stakes game that involves a series of secretive, possibly deadly challenges throughout the summer, with the winner receiving more than $50,000--enough money to start a new life.

Lena looks forward to receiving the government-mandated cure that prevents the delirium of love and leads to a safe, predictable, and happy life, until ninety-five days before her eighteenth birthday and her treatment, she falls in love.

After one fateful night, Sam wakes up with no future at all. Trapped reliving the same day over and over, she begins to question just how perfect her life really was. And as she begins to untangle the mystery of a life suddenly derailed, she must also unwind the secrets of the people closest to her, and discover the power of a single day to make a difference, before she runs out of time for good.