Viola prodigy Adina yearns to become a soloist. Overachiever Tovah awaits her acceptance to Johns Hopkins and a career as a surgeon. Huntington's, a rare degenerative disease, has turned their Israeli mother into a near stranger and fractured the sisters' own bond in ways they'll never admit. They've taken a genetic test to determine the odds they'll develop the disease. When the results come in, one twin tests negative for Huntington's. The other tests positive. This outcome pushes them farther apart. Can they repair their relationship... and is it even worth saving?