It is speculated that, if a person dies in a tragic way, then their spirit will be trapped in a world made out of their own memories. This world, the Mnemonic Abyss, is separate from our own, but what if a living person were to become trapped inside it by a ghost? Would it even be possible to escape again?

Calling is a horror game centered around several individuals who find themselves trapped in a ghostly otherworld. Each protagonist can search their environment for notes and clues to the mystery, but they won't find any weapons to arm themselves with. If a ghost appears then their only defense is to flee.

While the characters may be limited in their defenses, there is one supernatural ability they can take advantage of. Inside the Mnemonic Abyss a telephone can connect two places just like a doorway, instantly transporting someone between locations just by dialing the number. A character's cellphone can also receive helpful text messages and phone calls, and in the latter case the Wii Remote's speaker can be used as a cell phone.