Netflix's The Beast in Me follows a sinister story of a grieving author who starts to question whether her wealthy neighbor killed his first wife - but how did the psychological thriller end? The miniseries, which premiered on Thursday, November 13, introduced Aggie (Claire Danes) as she struggled to write her next book following her son's death. Aggie blamed a local teenager Teddy (Bubba Weiler) who was responsible after drinking and driving. She then met Nile (Matthew Rhys) - a wealthy man who moved next door - and his second wife, Nina (Brittany Snow).