Insidious

The Lambert family has just moved in a old house with a strange attic.
One day one of the children of Josh and Renai Lambert, Dalton, he falls from the stairs of the attic. The next day the children goes into coma and the doctors do not know why. While, Renai sees aparitions phantasmagorical in her house. The family have to decide how to tackle the problem and save the life and soul of their child.
This was the first horror movie I went.