If you were to judge the costumes, the make up, the over-acting and other things you might find yourself believing this is a movie set in the 70s. But it is not. While the characters do act and give out a 70s vibe, this is in the current time (technology is one of the give aways).
Unfortunately that also brings logical errors. Which may have been included to stay in line with the movies of that period. Because if you like the style you will obviously love this way more than my 6/10 is telling you it is worth. Staying as objective as possible is tough. Because I also do like what they do, but the flaws in character especially and decisions (ending) is failing in a way. Strands are being left unanswered, which may leave you dissatisfied. Nudity will not be able to change that to the better I reckon