There’s a moment about midway through Sirāt, Oliver Laxe’s searing desert rave thriller, that instantly sucks all the air out of the room. A few shocked gasps slipped out, and you could almost collectively hear everyone’s hearts stutter for a split second. Then all hell breaks loose, and Sirāt transforms from a dusty desert odyssey into a horrifying descent into hell. Convinced that they may find Mar there, Luis and Esteban insist on following, and the ravers reluctantly agree to guide them. Luis and Esteban search for their missing daughter and sister.