At the end of the Spectra (Spanish: Al final del espectro) is a 2006 Colombian horror film produced, directed and co-written by Juan Felipe Orozco.

As her horrific visions intensify, Vega begins to piece together a dark jigsaw puzzle illuminating evil's malign power.

A series of explosive situations: a sinister presence in the apartment, her neighbor's bizarre obsession, and a dark forgotten past, bring the story to a chilling, claustrophobic and tense spiral.

[1] During 2007 news broke out that Roy Lee was planning to do an English remake with Nicole Kidman as the lead, targeting a 2010 release date.

In 2013 a Mexican remake was released, called Demon Inside, directed by Alfonso Pineda Ulloa and starring Paz Vega in the lead.