Elements such as fringe theories, false accusations and paranoia are common in paranoid thrillers.

This is still a fringe theory, but has recently attracted the attention of several scholars and conferences.

These are usually considered fringe theories, and have varying amounts of plausibility.

Many similar fringe theories have cropped up.

However there are several fringe theories that elaborate on Montrose's activities during the last 3 years of his life.

Compounding this issue is that proponents of some fringe theories use both proper scientific evidence and outlandish claims to support their arguments.

A fringe theory is an idea or a collection of ideas that departs significantly from the prevailing or mainstream view.

Some fringe theories may in a stricter sense be hypotheses, conjectures, or speculations.

This was considered a fringe theory even in its time, however, and never became widely accepted.

"There is a fringe theory held by a few folklorists that some regional stories have actual, veryliteral antecedents," he said.