Poorly-made, with the appearance of a cheap TV movie - very shabby special effects, banal script, illogical plotting, extraordinary expansions and contractions of time, but most of all the most blatant collection of stereotypes: the jock, lecturing on fitness the whole time; the soldier with the murky (presumably deniable) recent history he tells to the first person who asks; the preacher, well over six feet and with a southern accent, proselytising.to the point of irritation; the saucy, feisty women of colour; the doe-teed youths, desperate to fall in love with each other.
The bad guys should all be so familiar, but Jack the Ripper turns out to be a woman in a mask and with a Dick van Dyke chimney-sweep Bert accent (no spoiler, she is in the cast list), Ed Gein, John Wayne Gacy and Jeffrey Dahmer are so keen to emphasise their one identifiable aspect that they forget to be bad. The pamphlet for a serial killer museum hints at a 'mystery killer', but we get two and it is never clear why.
Gore, such as there is, is strictly 1970s Giallo-standard; likewise gratuitous sexuality. If I was looking for a comparison, I would suggest a less memorable episode of Supernatural - it even ends as if setting up for the next episode but, on the evidence of this, a sequel is unlikely.