“Pretty Cheaters, Deadly Lies” (*1/2 out of four) was a pretty bland thriller about a high-school senior (Keara Graves) who thinks she can stop her cousin’s (Sydney Meyer) vindictive blackmail by taking her college exams for her but soon finds out that her cousin has even darker and deadlier plans for her and she has to play psychological warfare with her to the death in which only one of them will come out on top. Routine story of doublecrossings and deceptions seems prefabricated and spit out of a computer. Sorely lacking in any scares or thrills.