Watch 100 Days Full Movie Free Online 123Movies. When a cold hearted telecommunications executive returns to his small island town for his estranged mother's burial, he learns about the true Taiwanese tradition that mandates him to marry within 100 days so that the parent's spirit can transition peacefully. When a typhoon leaves him stranded for 3 days, he rekindles romance with his free spirited, childhood sweetheart who is engaged to marry a local villager/step brother.