New to AMC+/Acorn TV/Shudder in November

November is a no show for exclusive premieres on AMC+ but there are newcomers on sister services Acorn TV and Shudder (although several already have had TVNZ or Sky TV runs).

The Vanishing Triangle (November 6, two episodes, then weekly) stars Normal People’s India Mullen as an investigative journalist whose article about her mother’s murder sparks the disappearance of a young woman.

She and another detective’s (Downton Abbey’s Allen Leech) investigation of the case takes them around Ireland, where more girls go missing while the killer plays torturous psychological games.

The six-part mystery was inspired by true events that shook Ireland in the 1990s. It streams here a week after its US premiere on AMC+ and Sundance Now.

Also new are seasons two of Baptiste (November 6), in which the troubled investigator looks for a family that’s disappeared in the Hungarian mountains, and The Chase (November 13), the family vet drama about a dysfunctional Yorkshire practice.

Two series which previously aired on TVNZ 1 make their Acorn TV debuts: Missing child drama Hollington Drive (November 20) and the Ruth Wilson drama Mrs Wilson, in which The Affair star plays her own grandmother, the widow of a spy who discovers her husband’s “real wife” (November 27).

Horror serviced Shudder has two exclusive movie premieres:

• Mastemah: After a traumatic accident during a hypnosis session, Louise, a young psychiatrist, opens a new office in the middle of nowhere. When she starts analysing Theo, a dark and mysterious man, people around her start to die. Camille Razat and Olivier Barthelemy star. (November 6)
• The Tank: After mysteriously inheriting an abandoned coastal property, Ben and his family accidentally unleash an ancient, long-dormant creature that terrorised the entire region-including his own ancestors-for generations. Luciane Buchanan and Matt Whelan star. (November 10)