Critical Analysis of Thriller in the Novel Aku Lelakimu (2017) by Sara Aisha highlights ideas related to the thriller elements in novel based on point of view in Todorov’s narrative theory. This covers important findings in writing thriller novels by explaining the narrative structure. This study conducts an analysis based on the development of the storyline of the three main characters in the novel, namely Tihani Rose, Alexander Aryan, and Rafael Lee. There are important findings in terms of improving the genre of thriller novel such as using words that show surprise, thrill, and suspense to the reader. Therefore, thriller elements need to be included in writing such as threat, the involvement of dynamic characters, the location that brings the reader’s mind back to the murder place, thrilling action, and plot twist. The findings of the study show their significance created through the data the collection of selected data, especially in helping the researcher understand the focus of the study.