A flapper charms a diplomat to procure her fiancé a career opportunity, while the fiancé starts a relationship with her best friend...。葡萄牙首都里斯本特茹河岸，年轻女子离奇身亡，两名警探在重重困难之下展开抽丝剥茧的调查行动。经济危机袭来，气氛低迷，悠扬的法多在茫茫海雾之下凝结成一声叹息。。