Watch the Promo for Shadowhunters “A Problem of Memory”

The promo for Shadowhunters 2×15 has been released. The episode is called, “A Problem of Memory” and it will air on Monday, July 10.

In the episode, “Simon goes down a dark path while Alec and team prepares to transport Valentine”. Well, at least we know now why he is going down a dark path.

What did you guys think of the episode tonight?

Source: Freeform