Seventeen-year-old Rachel Sandler (Andrea Bowen, Desperate Housewives) is shocked out of her carefree world when word spreads through her upper class community that Jason, a popular athlete who recently died, was an IV drug user. But it's a mysterious computer message that really hits home: Jason, who Rachel had unprotected sex with, may have been HIV positive. Wanting to learn more about HIV, Rachel is urged to visit the local AIDS clinic by her new substitute teacher, Sarah Bennett (Jennie Garth, 90210). While there, Rachel takes a rapid AIDS test, but panics and leaves before learning the results. When Sarah discovers Rachel's test is positive, she breaks the shocking news to her, later revealing to Rachel that she herself has secretly been living with HIV for more than seven years. While both women wish to keep their privacy, they soon find out that today's technology of instant messaging, cell phones and blogs, gossip - just like disease - can spread fast and furiously.