Conceive a plot for a John Wick movie which includes redemption and closure

John Wick is a hitman who is plagued by his past and struggles to move on with his life. He eventually gets a chance to redeem himself when he takes on a new mission to complete a contract that he had been trying to fulfill for years. After completing the contract, he is offered a chance to join a secret society of assassins and he is finally given the closure he has been seeking.