Cameron Semple’s review published on Letterboxd:
All two and half stars go to the insane third act especially the police station massacre. One of the best action sequences of the year thus far. The rest of the film? Well all that contained was abhorrent writing, embarrassing acting and scares that were anything but. This should have been a full blown action film, that would have been amazing. So besides the third act, Malignant is hollow and rather silly but mega fans of the giallo period or the excessive gore films of old school Sam Raimi or old school Peter Jackson will find plenty to love here.
P.S: Brings a new meaning to "two faced bitch".