The Night Before Halloween

This movie so much like "The Purge", or otherwise it is pale copy of it.

Also this movie "Mischief Night" does not show the real connection of the first event (the lovers who are killed in the beginning) with the second event (father and daughter who are struggling for their survival) about how come father and daughter in the same house without first being aware what happened before; which is the real reason for doing this intruders, whether for fun, revenge or something else? Are they the same intruders from the beginning? Who are they really? - because you are constantly expecting an epilogue at the end and like many other movies comes to smaller or larger disappointment.