Borderless Fog is a detective film with an interesting story concept. Themes in this film include power, honesty, guilt and corruption. The story of this film has actually been used a lot, but what is contained in it is quite complex even though there are still shortcomings. This film presents quite a lot of scenes that are considered gruesome, and provides a tense sensation throughout the film. The mystery of who the real killer is is not revealed at all and is closed with an open ending. Unfortunately, there is too much mystery packed into this film, and it ends up being a bit of a mess. The characterization of Ipda Sanja's character here, like in most detective films, is always haunted by events in the past that make her job difficult. The cinematography doesn't feel cheap, the movement and angle shots help to build a tense and mysterious atmosphere. The tone of this film is also quite dark, but it also has a neo-noir vibe from the coloring. The music scoring is the same, with the right timing, it makes the vibes even more scary. Putri Marino's acting is really cool as her character, and the acting of the other actors is also really good. Overall, this is a quite exciting film even though it is a bit slowburn.