Question: Who has stayed up all night working on his manuscript? If there is no answer, please output "Insufficient information to provide an answer.". Movie title: Through a Glass Darkly Context: "Through a Glass Darkly," originally titled "The Wallpaper," is the first part in a film trilogy, the start to a new direction taken by Ingmar Bergman: "chamber films," so named for their analogy to chamber music.First Movement. The film opens with the mirroring of a gloomy sky on the placid Baltic Sea waters at the Faro Island shores, near Gotland's northernmost tip. Four bathers, all in a jovial mood, splashing and joking, are returning from a swim in the cold sea. As they reach the jetty, the youngest members of the quartet, Karin (Harriet Andersson) and her teenage brother, Fredrik, known as Minus (Lars Passgard), are sent off to get some milk at a nearby farm, while Karin's physician husband, Martin (Max von Sydow), and her father, David (Gunnar Bjorstrand), a writer, go and set up their fishing nets. David has just returned from Switzerland, where he was finishing writing his latest novel, and their task gives them a private opportunity to discuss Karin's status, whose schizophrenia has been diagnosed as most likely incurable.On the way to the farm, Minus expresses his hope that their father will be successful with his latest novel's publication. On the way back, Minus confides in his sister his sexual apprehensions, which eventually degenerates into his admonishment of Karin for the (maybe) too intimate attention she keeps showing toward him. But most importantly, he confesses how much he wishes he could communicate with his father.The quartet is reunited for the evening dinner around a table in front of their cottage. Again, a festive atmosphere prevails, but soon turns sour. David confesses that while he was anxious to return to his family after his long absence, that he is about to leave again, in spite of his earlier promise to his children not to travel so often. Somewhat guiltily, and seeking forgiveness, David distributes some presents, all of them turning out to be unsuitable. He goes into the house under the pretense of getting his pipe tobacco, but it is only to release his pent-up anguish at...
A:
David