In low- and middle-income countries in Asia, the use of supernatural, religious, and magical approaches to mental illness is widespread. We aimed to document the help-seeking behaviours and barriers to effective mental healthcare in the case of a psychiatric patient in rural Cambodia. The present case report describes the pathway that a patient with schizophrenia utilised to receive effective treatment in a rural area. First, the patient was taken by his parents to a pagoda. Subsequently, they took him to the home of a Kru Khmer (a Cambodian traditional healer). Nevertheless, his condition did not improve, and after seeing this, a neighbour suggested to his mother that they visit the provincial hospital. The patient received a diagnosis after an assessment by the hospital psychiatrist. Following several months of treatment with medication, the patient no longer exhibited paranoid behaviour. In this case, the patient's and his family's beliefs are strongly related to help-seeking behaviour toward medical care among psychiatric patients. To promote timely visits to the hospital, it is crucial to clarify and understand the type of beliefs held by psychiatric patients and their families. Besides, an educational approach to the beliefs is essential for shortening the duration of untreated illness.