The document provides short plot summaries for 4 potential low-budget horror movie ideas: 1) Ghost hunters find sinister footage in an abandoned building of kids who went missing during a ghost hunt. 2) A person notices strange differences in their day that suggest an alternative dimension. 3) A taxi driver picks up a strange passenger who directs them to a secluded forest with a gun present. 4) A man starts receiving disturbing text messages of himself being tortured, seemingly sent from the future, before ominous noises are heard in his home.