I find something repulsive about the idea of vicarious redemption. I would not throw my numberless sins onto a scapegoat and expect them to pass from me; we rightly sneer at the barbaric societies that practice this unpleasantness in its literal form. There's no moral value in the vicarious gesture anyway. As Thomas Paine pointed out, you may if you wish take on a another man's debt, or even to take his place in prison. That would be self-sacrificing. But you may not assume his actual crimes as if they were your own; for one thing you did not commit them and might have died rather than do so; for another this impossible action would rob him of individual responsibility. So the whole apparatus of absolution and forgiveness strikes me as positively immoral, while the concept of revealed truth degrades the concept of free intelligence by purportedly relieving us of the hard task of working out the ethical principles for ourselves.
Chronic remorse, as all the moralists are agreed, is a most undesirable sentiment. If you have behaved badly, repent, make what amends you can and address yourself to the task of behaving better next time. On no account brood over your wrongdoing. Rolling in the muck is not the best way of getting clean.
Perhaps this is the purpose of detective investigations, real and fictional -- to transform sensation, horror and grief into a puzzle, and then to solve the puzzle, to make it go away. 'The detective story,' observed Raymond Chandler in 1949, 'is a tragedy with a happy ending.' A storybook detective starts by confronting us with a murder and ends by absolving us of it. He clears us of guilt. He relieves us of uncertainty. He removes us from the presence of death.