A team of workers at a petroleum plant dies while on holiday when their bus falls into a ravine. A police office discovers that the deaths were not an accident but pre-planned murder. Why did those people die and who plotted their murder?
Overview：A team of workers at a petroleum plant dies while on holiday when their bus falls into a ravine. A police office discovers that the deaths were not an accident but pre-planned murder. Why did those people die and who plotted their murder?
