**_Ghostly goings-on at a deserted camp in the heart of the Sooner State_** A four-person paranormal investigation team has to come up with a hit episode or their producer will cancel the fourth season. They choose an abandoned church camp in Oklahoma where 28 kids were poisoned and drowned in 1990. “Camp Cold Brook” (2018) mixes “The Blair Witch Project” and “Death Tunnel” with the milieu of “Friday the 13th.” The beginning is a compelling set-up while the last act delivers the goods with an interesting closing element. The hour in-between revolves around the four investigators staying ...