After another failed attempt to commit suicide, hapless writer William addresses the services of hired assassin Leslie, the inexorable angel of death from the Killers Guild, an organization that is ready to help anyone who needs a quick and painless death. Leslie has a good heart, but an unsteady hand. The authorities want to retire him, and the contract that has turned up is the only chance to postpone the inevitable. However, the case intervenes in the fortuity. The fate suddenly smiled to William: he falls in love.