EXCLUSIVE: Tuppence Middleton and Hannah Gross are starring in Canadian indie Clifton Hill, a drama from In Her Place director Albert Shin. The psychological thriller hails from Rhombus Media and Elevation Pictures with Elevation distributing in Canada.

The story centers on Abby (Middleton) who, after returning home following the death of her mother, becomes obsessed with fragmented memories of a kidnapping she claims to have witnessed as a child. Gross is Abby’s younger sister Laure, whose tense relationship with her sibling is put to the test as Abby’s obsession grows out of control.

Andy McQueen (Fahrenheit 451), Noah Reid (Schitt’s Creek), David Cronenberg (Alias Grace), Eric Johnson (The Knick) and Marie-Josée Croze (The Barbarian Invasions) also star in the film, which has been shooting in Niagara Falls.

Shin says, “My parents settled in Niagara Falls as new immigrants to Canada and much like the film, bought a motel in the shadow of Clifton Hill. My deep-rooted connection to this unique city, together with my own childhood memories, were the inspiration… It’s been such a thrill to see it come to life, especially in the gifted hands of Tuppence and Hannah.”

Middleton, whose credits include Sense 8 and The Current War, will next be seen in the upcoming Downton Abbey movie. She’s repped by United Talent Agency and Conway van Gelder Grant. Gross recently completed The Education Of Fredrick Fitzell, and currently can be seen in the second season of USA’s Golden Globe nominated series The Sinner. She’s repped by ICM Partners and Authentic Talent and Literary Management. Shin is with Great North Artists Management.

Clifton Hill is co-written by Shin with newcomer James Schultz, and is produced by Fraser Ash and Kevin Krikst of Rhombus (Enemy, Into The Forest). Rhombus’ Niv Fichman will serve as executive producer, alongside Adrian Love and Omar Chalabi from Elevation Pictures. The project is receiving financial support from CBC Films and is produced with the participation Telefilm Canada and Ontario Creates.