Shadowhunters premiere
The show is an adaptation of the novel, The Mortal Instruments, written by Cassandra Clare Shadowhunters official website

Shadowhunters, a new thriller series based on the novel The Mortal Instruments by Cassandra Clare, will premiere on 12 January on Freeform – previously known as ABC Family. The new show will focus on the character of Clary Fray, a teenager, whose regular life turns upside down when she starts seeing "paranormal activity".

Episode 1 is titled The Mortal Cup, where Clary will turn 18 and learns that her birthday has revealed some dark secrets about herself.

Click here to watch the series premiere live online on Freeform (only in the US).

Warning: Potential spoilers ahead

The synopsis of the show reads as follows:

Upon seeing paranormal things, Clary realises that she carries the bloodline of an ancient race of people called the Shadowhunters, who have supernatural powers to fight demons, vampires, werewolves and other evil creatures.

The series will premiere on Freeform on 12 January at 9/8pm CT.