Freeform released 2 sneak peeks for the upcoming Dead of Summer episode, 1x04 "Modern Love".
In the first video, the gang discuss a mask linked to Cricket and Deb. Joel has a photo album with a picture of a younger Deb and someone with a mask. When Cricket realizes it's the same one she saw in her nightmare, Joel tells her that Deb has it in her closet.

n the second sneak peek, Alex and Cricket sneak into Deb's cabin to look for the mask and are almost caught by Deb, who takes her box because she promised Joel to show him what's inside.