Luke's love for cutting corners gets him into serious trouble when a quick-fix solution to tidying his room, using some of Eefa's magic cleaning powder, ends up putting the whole of Scream Street in danger. Otto finds out about the magic powder and tries to steal it, but as Luke attempts to get it back there's a big spillage, meaning the vacuum cleaner is no longer just a machine but a living machine monster! Can it be stopped before it sucks up the entire town?