The Banker Timeline and Summary

The banker remembers a party he threw fifteen years ago where he turned an argument about the death penalty into a bet that a lawyer couldn't stay in voluntary solitary confinement for fifteen years.
Now that time is almost up, and he stresses about the fact that he doesn't have the money to pay up his side of the bet—two million rubles.
The banker decides to murder the lawyer.
He sneaks into the guesthouse prison and finds the lawyer asleep.
Just as he's about to kill him, he finds a note that says that the lawyer rejects the money and will lose the bet on purpose.
The banker leaves the room, taking the letter as proof that the lawyer rejected the money and stashes it in his safe.