What’s up?

A man in a red sweater lies on a couch, talking on a cordless phone, then the scene cuts to a man with spiky hair at a computer, who answers the phone and yawns widely. The scene cuts again to a figure in a white, skull-like mask holding a phone, then to a man with curly hair and a hat screaming into a phone, before returning to the man at the computer, who yawns again. The setting is an indoor room with a bookshelf and a desk.