Cassandra Castillo has been broken for a long time, but manages to keep going thanks to the help of her best friend, Becca Jones. Being inseparable from the start with nothing able to tear them apart, or so Cassie would like to believe. Yet everything changes when she begins dating the most popular boy in school, Hugh Squire, the guy her best friend is secretly in love with.
Left with a broken heart and resentment towards her best friend, Becca sets her eyes on popularity to overcome her pain. But to achieve her goal, she would have to befriend Jenine Squire and her group of friends: Cassie's old bullies.
Despite her noble heart, Becca soon becomes blinded by superficial friendships as she accepts an invitation to a populars' party. Creating a big rift in her friendship with Cassie when she ignores all her warnings and becomes friends with her best friend's tormentors.
But when Becca discloses all of her secrets; Cassie is left at odds as she finds herself alone and drowning in a sea of silence.
Will their friendship survive or is it the end?