Lily moved to Washington a while ago—making new friends, going to new places, and living an entirely new life. Amy, however, is stuck in California—the same place she'd lived in her entire life. Lily and Amy have been inseparable for the longest time, and regardless of the hours and miles between them, they keep in touch through letters they pour their hearts into. However, like any other friendship, they slowly start to grow apart. As the story unfolds, an unexpected letter, sent by neither of the two friends, could make or break their friendship.