In Over Your Head — Larry J. Hillhouse

Thinking he is rescuing a hitchhiker from the rain on a desolate road, Cody stops to offer assistance. When he starts to question the lady-in-distress she breaks into tears, melting his gallant heart. Learning that she does not have a destination, he invites her to stay at his house, never imagining that she might accept, but she does.His mystery lady, Kim, doesnt reveal much about herself, and soon disappears within a few days leaving only a handwritten thank you note.Soon after the FBI arrives and searches his house, and Cody finds himself under house arrest. He soon learns that others are searching for Kim, and all suspect that Cody is heavily involved, and knows more than he admits.Using his computer skills to search for Kim, Cody places himself squarely in the middle of a vicious struggle between the FBI and several ruthless groups of bad guys. Is Cody in over his head?