Tom Winscombe and his ex-girlfriend Dorothy Chan are on a mission to crack a code a code embedded in a chip inside two alpacas that used to belong to the famed dead mathematical geniuses, the Vavasor twins.

Their search leads them to a secretive mathematical retreat at a country house. While there, various members of the party succumb to a succession of bizarre fatal accidents. Will Tom and Dorothy succeed in their mission and get out alive?

Join Tom and a cast of disreputable and downright dangerous characters in this witty thriller set in a murky world of murder, mystery and complex equations.