The film stars Eva Green, Mark Strong, Chai Fonacier, Billie Gadsdon, Cathy Belton and Anthony Falcon.

[1] While Christine,[2] a children's fashion designer, takes a call, a disease ridden dog approaches and shakes itself, spreading ticks onto her before vanishing.

She uses a matchbox to summon and capture the tick that bit Christine, then assembles an altar in her room's fireplace and uses its ashes in a ritual to commune with the unseen spirit of a child.

As Felix moves upstairs to cool off, he is attacked by a canary that resembles Bobs' pet and is injured after falling from the top of the staircase.

Christine then sees flashbacks of Diana's life in the Philippines where she lived happily with her husband and daughter until they were expelled by landgrabbers and fled to Cebu City.

During a visit, Christine advised the managers to overwork the employees and lock the only exit to prevent theft, which resulted in the death of Diana's daughter and her coworkers following a fire.

As Felix arrives to find Christine's burnt body seated at her sewing machine, Diana tells Bobs to wait in the garden.

[3][1][4] As part of research for the film, director Lorcan Finnegan and screenwriter Garret Shanley went to the Philippine islands of Cebu and Siquijor, drawing parallels with Filipino and Irish experiences of colonialism and capitalism, as well as common beliefs in folklore and shamanism.

The website's consensus reads: "Nocebo struggles to consistently engage, but unsettling atmosphere and interesting ideas make this thriller difficult to dismiss outright.