When thirteen-year-old Cassie moves to a suburb of Seattle, she is determined to leave her boring, good-girl existence behind. She chooses some dangerous new friends and is quickly caught up in their fast-paced world of drugs, sex, secrets, and cruelty.

Cassie's new existence both thrills and terrifies her. She embraces the numbness she feels from the drugs, starts sleeping with an older boy, and gets pulled into a twisted friendship triangle that is tinged with violence and abuse. Cassie is trapped in a swift downward spiral, and there's no turning back.