Melanie Honeywell comes from a large family and looks forward to her aunt and uncle's adoption of a child. But, instead of the tiny infant she's expecting, an obnoxious teenager becomes part of her life. Worse, Samantha attends the same Christian school and is in all the classes Melanie and her best friend Karen Aimee are.

To Melanie's complete astonishment, Karen not only accepts Samantha as a friend but makes Melanie wonder if their own lifelong friendship is in jeopardy. Samantha seems to ruin everything: She fouls recipes, messes up clothes, and breaks everything—all without trying. Even as Melanie secretly hopes her aunt and uncle will realize Samantha isn't worth the trouble and send her back, she knows the Lord has a message for her somewhere in this friendship fiasco.