What unpopular suspense films are worth recommending?

"Invisible Guest" Douban 8.6 Spanish mystery film, Adrian is a successful man with a good career and family, but he keeps a physical relationship with a female photographer named Laura behind him. A car accident happened on the road after a tryst one day. In order to cover up the truth of the incident, the two decided to sink Daniel, a young man who died in a car accident, into the bottom of the lake with his car. When they thought everything was calm, Laura met a kind old man who turned out to be Daniel's father, which led to more intimate plots. The wonderful dialogue that runs through the whole scene is excavated layer by layer by flashback, so that every line and story is justified by unequal and hidden information and narrative. Even if the plot is reversed, it must be reversed several times in a row, which is too much! Those with low IQ can't wait to see the detailed analysis again immediately. For friends who like this kind of film, it is highly recommended!