The film is a remake of the South Korean movie "Montage." A key character, the original lead investigator of the past kidnapping case, was portrayed as female in the source material but is portrayed as male in "Te3n."

The film is an adaptation of the South Korean movie "Montage," where characters originally established as East Asian are portrayed by South Asian actors in this remake, constituting a race swap.

The film portrays an enduring marriage and a grandfather's relentless pursuit of justice for his granddaughter, highlighting deep familial love, respect for elders, and the positive role of religion in coping with tragedy. These elements collectively favor traditional family values.

The film features Father Martin, a former police officer turned priest, as a central character. His faith is portrayed with depth and nuance, showing him as a compassionate individual whose moral compass is guided by his religious calling, even as he grapples with past failures and the pursuit of justice.