Suspenseful moments in 'The Step Father'

Normality is established in the beginning of the thriller when a male is shown showering ,shaving,making tea and putting on the radio. But this becomes subverted when he is dying his hair and changing his contact lenses.The audience start to wonder why there are dead bodies of a women and children in the living room.

False plateau is created numerous of times.An example of it is when the cat jumps out onto the 'cat lady' at this time we thought it was the killer; we are reassured and relax.