Down-on-his-luck taxi driver Karl moves in with his auntie Norma after breaking up with his long-term girlfriend. As he muddles through life, his closest friend is the voice in his head, an uncensored version of himself who will not shut up. In the first episode, Karl and Norma are holding a wake for uncle Vinnie at the house when a delivery man turns up with the new sofa.

Karl comes to a big realisation when a noisy baby leaves him at the end of his tether.

Karl's big plan to woo Zoe goes out the window when a father and son get into his cab, before an urgent pick-up derails things even further.

Karl's doctor tells him he needs to get over Zoe and start dating again to cure his constipation, but he finds himself constantly saying the wrong things.