Megan Logan’s sixteenth birthday party is in eleven days, and she still doesn’t have a date. For months she’s been secretly in love with her best friend, Justin, but she’s afraid to tell him how she feels. By the time her party starts, though, boys will be the last thing on her mind.

While Megan tries on her party dress, three of her friends go for a ride to the lake. As the car makes a sharp turn, the steering malfunctions, and the girls fly headlong into a utility pole. Two escape with minor injuries, but one is rushed to the hospital in critical condition. As Megan worries about her friend, a spirit appears in her mirror: the ghost of a girl who died decades before, on her sixteenth birthday. As the ghost attempts to take over her life, Megan just hopes she can make it through her party alive.