We start off with the main character on the run with his 8 year old daughter. We don't know why, we don't know what from.
But it is compelling and intriguing.
And then we start to get a glimmer of preceding events. Forget clowns. You think clowns are creepy? (Yes, yes they are!) This is creepy:
"The music grew louder, louder, until it was right outside the house in the street. In the summertime, that jocular little melody would send the neighborhood kids flooding into Columbus Court, anxious for a Rocket Pop or an Italian Ice. But now, in the dead of winter and in the middle of the night - David glanced at the alarm clock on the nightstand and saw that it was well after midnight - the sound of that tune unnerved him."