His Oedipus complex had become manifest, causing him to kill his father, and plan to rape his mother.
But his mother had died years before; her death caused his psychological problems.
Still, he found a time machine, and accomplished his goal.
Then he realized when and how he would die.
He was dating two girls at the same time. Except, one was actually his mother. And the other was his sister. Actually, his sister was technically his brother. Also, his father was actually an alien from Andromeda. Their memories had all been wiped. This all happened in an alternate timeline.