Don't Get Caught

There once was a girl named Seraphim Danaeris.
At five she was sweet and cute.
At ten she was brave and becoming a rebel.
At 15 she was become dark and mysterious.
At 20 she graduates as a perfect student with her perfect boyfriend.
At 25 she is perfectly married.
At 26 her life is perfectly destroyed.

It started at new year, with her father.
They all celebrated New Year's Eve together, but the next morning her dad was gone with not one single trace.
A week later he comes back in pieces. Literally.
The next day her mother went missing just like her father, and came back after a week.
It went on and on every week, and the deaths are surrounding her.

Seraphim has 52 close friends and relatives.

A year has the exact same amount of weeks in it.

Will she be able to solve this mystery before it's the end of the year?

But before you start...
Expect the unexpected, or else you'll get caught...