“Trickster” (* out of four) was a pretty lame horror story without much tricks or treats about a nightmarish character called the Trickster who invades other’s subconsciousness and forces them to question the difference between reality and dreamworld and the hapless townsfolk (Erica Jenkins, Derek Thompson, and others) caught in the middle. Yet there’s no question that anyone who makes it to the end will be stuck in dreamworld because the film is a real snooze. Likeable enough cast can’t do anything with this weak material.