Writing a character with a new lifestyle

The synopsis of the movie A Simple Plan, on the back of the DVD cover reads:

The lives of three small town people are turned upside down when they discover a small plane concealed by snow in the mountains. Inside the plane could be the only way out of their insufficient lives, in the form of a duffel bag containing four million in cash next to the dead pilot. Two of the men, Jacob and Lou, are eager to keep the money but have a hard time convincing Jacob's brother, Hank, not to turn it in. Hank agrees, but on one condition, he will hold the cash until it is safe to keep. It's a simple plan and all goes well until Jacob overreacts to an untimely visit by a neighbour and the plan begins to unravel. With loyalties frayed each person involved must decide how far they are willing to go to cling to their ill-gotten fortune.

Use the above as inspiration to write a story about a character who finds a way out an insufficient life not by finding money, but by finding a new way of behaving.