Inexcusable is a novel for young adults written by Chris Lynch in 2005. This is an account of an accusation of rape from the perspective of the person accused. Keir, a high school senior, cannot come to terms with the idea that he would be capable of such an act. Gigi, one of his closest friends, is in a fury that he has raped her and that he does not know what he did was wrong.

Keir describes the last few months at high school. He permanently injured a football player during a game and this earned him the nickname Killer. He also gets into a fair bit of trouble hanging out with the football team.

It is on graduation night that things get much worse. Upset that his sisters didn't come in for the ceremony and accompanied by Gigi, who is upset her boyfriend Carl didn't come, he heads to Norfolk to surprise his sisters. Things don't turn out as planned and Keir and Gigi stay overnight in a vacant guesthouse on campus. He now won't let Gigi leave the room until she can see that what has just happened is not rape. But it is Keir who finally understands what he has done.

This is the story of Keir's coming to terms with the truth about himself and the responsibility that he holds for his actions.