Terrible Dream

In my dream last night I was visiting friends who lived on one of the top floors of a high-rise. It was winter and at some point the hostess (a former student, not a close friend in real life) told me that since it was so cold, the elevator wasn't working-- because of this, other guests started knowingly, wilfully committing suicide by jumping out of the apartment into the street. One of my teachers from school jumped, another just disappeared. The hostess was planning to jump too and urging me to as well. It was only just before or perhaps even after I woke up that I saw the sheer craziness of the behavior. What can it mean?