Both are mystery-thriller dramas and they both have an 'investigation' to find the 'culprit' behind the act. 'Rumor' is somewhat darker than 'Find me if you can' (which has lighter moments). Both dramas are based on real-life topics: 'Find me if you can' is based on stalking and also showcases bullying. kidnapping, manipulation. While, 'Rumors' is based on rumors (obv) and their effect on people, being a victim of workplace bullying and judgement.