Basically, Cthulhu Confidential is for one-on-one roleplaying sessions between the GM and a single player. Personally, I prefer to have at least three other people around the table, but one-on-one has its place, especially if placed in the context of a larger campaign. At any rate, they’re having a contest with a free game giveaway. Go over there and tell them which fictional character you’d want to roleplay this as!