This element of surprise or mystery the detective element as it is sometimes rather emptily called is of great importance in a plot.
E. M. ForsterBelfastas uncivilised as ever--savage black mothers in houses of dark red brick, friendly manufacturers too drunk to entertain you when you arrive. It amuses me till I get tired.
E. M. ForsterThe king died and then the queen died is a story. The king died, and then queen died of grief is a plot.
E. M. Forster