Tonight's ep is an Editor's Pick from tvguide.com:
Shadowhunters Salt in the Wound (Season 3 | Episode 7) 8:00PM With the Owl's identity revealed, Alec, Isabelle, and Clary head to Alicante to try and find a way to stop him. Luke and Simon team up to track Lilith's latest possible victim. Maia reflects on her past.
The show is also tvguide.com's #10 Top Trending show...
Beyond the teaser for this article saying "This show looks very weird," near the end of it there's a bit of casting news (that I missed in the previous article because I simply posted the link to it for the trailer) that will definitely make me check it out: