The film depicts a man flirting with a pretty young woman suddenly waking up in bed next to his ugly wife.
[1] A well-dressed man pours a glass of champagne for a young woman who is sitting with him at a dining table.
This view is suddenly replaced by one of an old couple in bed, him kissing her, she enthusiastically willing.
However, an important difference is the technique used to show the transition from dream to reality.
Zecca on the other hand seems to have been the first director to use a dissolve to show a smooth transition between dream and reality.