Synonyms for Bedevil (same or very similar meaning)
WordNet sense 1 (treat cruelly):
crucify, dun, frustrate, rag, torment, tormentWordNet sense 2 (be confusing or perplexing to; cause to be unable to think clearly):
befuddle, confound, confuse, discombobulate, fox, fuddle, throw, confoundFrom the ODE community, based on WordNetadd/edit