Step into the quirky world of Arthur Grumble, a washed-up greeting card writer who suddenly finds himself in a mind-bending mystery involving lost identities and swapped lives. When Arthur discovers a bizarre collection of greetings notes left by complete strangers around his cluttered apartment, he realizes they hold the key to unraveling a deeper conspiracy. Engage in interactive dialogues, gather clues, forge unexpected alliances, and discover whether these hellos belong to friends, foes, or something more sinister. Can you help Arthur reclaim his true self before the final card is delivered?