Plot in The Canterbury Tales
The Knight creates a neat ending for this story. Emily loves Palamon, and Palamon serves her as a chivalrous knight and husband should. Any strife, disagreement, or anger is now absent from the story. This is the equivalent ending of the modern day "and they lived happily ever after," which suggests that no future problems will arise.
Notice that the incentive for murdering their friend and stealing his money has no greater aim than "playing at dice." In other words, the men plot to murder in order to continue engaging in their vices. Their actions are not only immoral, but also justified by immoral motivations.