Spring Dream by the Lake

Overview
To get over a breakup with his actress girlfriend, a playwright goes on holiday to a lakeside resort, where he meets a strangely mismatched couple, a man and his much younger wife. He and the wife begin an affair, during which she introduces him to some of the darker aspects of romance.
Similar
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The Suicide Club (1914)
The Littlest Rebel (1914)
Daybreak (1918)
The Case of Lena Smith (1929)
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Madame du Barry (1917)
A Love Sublime (1917)
The Age of Innocence (1924)
Jealousy (1929)
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The Flash of an Emerald (1915)
Destruction (1915)
The Miracle Man (1919)
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The Tower of Lies (1925)
The Law of the North (1917)
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A Marriage of Convenience (1918)