Lena is new in town. She is getting by with various jobs and enjoys the privilege of having her world-traveling friend's beautiful attic apartment to herself. One evening, after a long day of work, she treats herself to a glass or two of wine and a joint. She relaxes and idly observes three people sitting on the roof of a nearby building, apparently celebrating something. Suddenly, there are only two left: a man and a woman. Where has the third one gone? Has Lena just witnessed a crime, or is her imagination running wild? The incident won't leave her mind. She is almost certain that something terrible has happened right before her eyes. However, she doesn't want to go to the police; on one hand, she has no evidence, and on the other, she was inebriated herself. She doesn't have any friends or acquaintances here yet. All she can do is conduct a little investigation on her own.