It's been 24 days since Tom, a married man who has lived his life as 'straight', finds out that he is HIV-positive. Consumed with sorrow and rage about his situation, Tom sets out to find Dan, the only man he's ever slept with and the person he believes is responsible for giving him the virus.

Tom's violent kidnapping and murderous threats clearly pass the bounds of legal and rational behaviour, and yet, if Tom's conviction about Dan is true, then Dan is accountable for more than a minor moral lapse.