The story happened during the Second World War.Rick worked for American Intelligence Agency[1] in Paris.One day he met with Ilsa in Paris.They soon fell in love and planned to marry.However,with the German's march into Paris,they had to give up the plan and wished to get to Marseilles by train and married there.But just before the leaving by train,Rick received a letter from Ilsa,saying that she couldn't go with him.So he had to pass through many places to Casablanca and runs a Cafe[2] there.One night,he met Ilsa at his Cafe,who escaped with her husband to Casablanca.They hoped to obtain exit visas here and escaped to the New World At first,Rick can't forgive that Ilsa's gone back on[3] her word.At first he refuses to help them get the exit visas.Learning this Ilsa determines to go alone to see Rick.