Zombi 65: The Water that Killed Everyone (1981)

The "crazy" engineer Murat, who sacrificed not only his labor and sweat but also his wife and son for the Keban Dam, is engaged in a difficult struggle against the ambitions of his stepbrother. The tunnel and road construction work being carried out to create a gambling paradise in the dam area has also brought with it incidents of dynamite explosions. The geological structure of the region poses a risk of causing the dam to collapse. Murat has sensed the danger and is risking his life to warn both his brother and the local community. However, this struggle he is waging alone is also hopeless.