What is the theme in Thyestes; Phaedra; the Trojan Women; Oedipus with Octavia by Seneca?

A recurring theme in this collection is that of murdering family. Tantalus, a son of Zeus, serves Pelops, his son, as the meal at a banquet of the gods. At the time the play begins, Atreus reigns as king and plots against Thyestes by the means of a false reconciliation. The ghost of Tantalus mourns the current generation of his family's sins which makes their predecessors' sins appear small. These sins cause even Tantalus to look innocent. At the Fury's bidding, Tantalus' old hunger awakes, and chaos settles in the House of Pelops.