This film was a delight. As the trip progresses the family learn more about each other and about the impact their deceased sister had on them, and they on her. They open up old jokes and old rifts between them. They have parties and panic attacks. The father is a big character, set apart from his children by a generation. We see how they spent their final moments with their sister, and how they learn more about her demise. I've said enough, just go watch the film. My only critisism is that it should have been half an hour longer.