H.E. Balinovsky 
The Boys of St. Jude’S [EPUB ebook] 

St. Judes was an orphanage better known as a place where you could abandon a baby.
Here, identical twins Hugo Buermann and Barry Benson were separated at birth and lived their lives unaware of each others existence until Barrys wife, Sandra, saw him with another woman.
But that other woman was Hugos wife, Arabella, to whom she presented such proof that both women believe they were married to the same man, a man who had an allergy to chocolate. Sandra, threatened to kill him, but Arabella decided that she would poison him with the chocolates he could not resist.
And so a murder was built on coincidence and suspicion. From London to Marbella, a series of coincidences reinforced suspicion and suspicion engendered yet more coincidence, like a serpent devouring its own tail until it unwittingly drew in all the boys of St. Judes.