M. Night Shyamalan's Servant is returning for its third season this January. The horror series has recently revealed the trailer for the upcoming season, promising a wave of horrors to unfold.

Servant follows the story of a wealthy Philadelphia couple, Dorothy and Sean Turner, who experience a fracture in their marriage after the death of their thirteen-week-old son, Jericho. The couple undergoes transitory object therapy using a lifelike reborn doll after Dorothy experiences a full psychotic break. Dorothy believes that the doll is the real Jericho (it is the only thing that brought her out of a catatonic state), and hires a maid named Leanne, who has secret occult powers.

However, Leanne's ties to a cult known as the Church of Lesser Saints threaten the existence of the Turners, and the more Leanne tries to protect herself, the more chaos she causes for the family. Servant Season 3 picks up amidst the looming threat of the cult and as Dorothy tells Sean in the trailer, "This cult could come back for her at any time." Things are even scarier than they seem, as Leanne explains that the Turners cannot keep protecting her forever, and that “You wouldn’t even know what to look for.”

The official description explains, "As Sean starts trusting in Leanne’s power, Dorothy feels increasingly threatened and worries for Jericho’s safety. While the Turners struggle to keep their family whole, they must come to terms with the costs of Jericho’s return."

Given that this psychological horror series is the brainchild of M. Night Shyamalan, viewers have been introduced to a whole new world of despair over the first two seasons. The shadow of fear continues to hang over them, as the house starts filling with pests and skeletal remains turn up in the basement. As everything starts to go absolutely haywire, it raises the question echoed by the character Roscoe: "What the hell happens now?”

Servant stars an exciting roster of talented actors, with the notable actor Toby Kebbell (Black Mirror, Kong: Skull Island) playing the role of Sean Turner. Two-time Primetime Emmy nominee Lauren Ambrose plays the role of Dorothy Turner. Nell Tiger Free, best known for playing Myrcella Baratheon in seasons 5 and 6 of Game of Thrones, plays the mystic nanny Leanne. Rupert Grint will be reprising his role as Dorothy's brother Julian in the upcoming season. Sunita Mani, known for her roles in Spirited, Mr. Robot, and GLOW, is a new addition to the cast in Season 3.

Servant Season 3 will premiere on Apple TV+ on January 21, 2022, followed by one new episode every Friday.