Greg and his friends break into an old warehouse, where they find an unusual camera. However, the photographs Greg takes with it seem to predict disaster, and he becomes convinced the camera is cursed.
When her family moves into a new house, Kat finds a sponge which appears to be alive, but no-one will believe her. After the discovery, the family is besieged by bad luck, and Kat is convinced the sponge is behind it.
Evan's visit to his great aunt Katherine's house turns eventful when he finds a jar marked "Monster Blood". He and his new friend, Andy, decide to try it out, but are horrified to find that it is growing.
