While giving a friend writing advice, she casually suggested making the male lead a ruthless psychopath who directly murders a prominent side character. She immediately regrets her words when she wakes up inside the novel as that exact doomed character! Desperate to avoid her gruesome fate, she tries to stay as far away from the psychopathic prince as possible. But the more she avoids him, the more dangerously obsessed he becomes—whispering sweet words about running away together while secretly plotting to lock her up forever in a cage. Can she convince the obsessive prince to break off their engagement before it's too late?