When Lannie Marvin turns forty, everything falls apart-her husband leaves, a drug-enhanced lab mouse bites her, and she develops an alarming crush on the drummer of her son's favorite metal band. On a whim, Lannie drags her best friend to a Dreamwish concert in Bethel, where she collides-literally-with widowed drummer Tristan Allard. Their chemistry sparks a wild weekend that reignites them both... until reality hits. Tristan's headed overseas, and Lannie discovers the experimental drug has a terrifying dark side.