Sam and Amy Cross are identical twins. Sam has spent her high school years living in popular Amy's shadows, but she has never been envious of Amy. In fact, she's chosen the quiet, safe confines of her sketchbook over the constant battle for attention that has defined Amy world. When-after a heated argument-Amy and Sam get into a tragic accident that leaves her sister dead, Sam wakes up in the hospital surrounded by loved ones who believe she is Amy. Feeling responsible for Amy's death and everyone's grief, Sam makes a split-second decision to pretend to be Amy. Soon, Sam realizes that Amy's life was full of secrets. Caught in a web of lies, Sam is faced with two options-confess her deception or live her sister's life.