Angelhood

Seventeen-year-old theater geek Nanette believes her life is headed toward stardom on Broadway. But when her dream theater college rejects her and her best friend dies in a terrible accident, Nanette decides the world would be better off without her. Unfortunately, the afterlife offers something less than a heavenly situation. Trapped between alternating periods of utter darkness and light, Nanette is stuck following a high school freshman around. Soon, she learns she's a guardian angel, and the only way she can earn her wings is to keep her young charge, Vera, from committing the same sin she did--taking her own life.
Unfortunately, Nanette is missing more than just her wings. She has no tangible body or voice, either. Frustrated by her inability to reach out to Vera and haunted by memories of her old life, Nanette wants to give up, but then she sees what happens when another Guardian at the high school turns his back on his charge. The shock is enough to supercharge Nanette's determination. She's going to find peace in the afterlife...as soon as she can convince Vera that living is what life is all about.