Diecinueve anos atras, tres amigas, Leslie, Madison y Ellie, cumplian veintiun anos y compartian sus secretos del pasado y sus esperanzas respecto al futuro. Eran tres jovenes atractivas y con mucho talento, y el mundo entero estaba a su alcance. Sin embargo, la vida no siempre se desarrolla conforme a nuestros suenos de juventud. / Three best friends, all with the same birthday, are about to turn forty. Celebrating at a summerhouse in Maine, Leslie Headrick, Madison Appleby, and Ellie Abbott are taking stock of their lives and loves, their wishes and choices. But none of them expect the gift that awaits them at the summerhouse: the chance for each of them to turn their ""what-ifs"" into reality.