In season three, Harry and Fergus are hired to prove the lead singer of Ireland's hottest boy band didn't kill himself, find out who decapitated a woman in a busy restaurant, discover who murdered a despotic director on the set of Ireland's leading daytime soap opera, work out how a mystery writer managed to shoot himself in a locked panic room without a gun, and more.

Meanwhile, with the agency still as busy as ever, Harry and Fergus have to find a way to balance work and life as Fergus plans to contest Paula's custody claim to his sister.