The puzzle of life is one's self discovery

An under-achieving, unemployed 30-year-old man enjoys his freedom of non-responsibility through his vices. However, his life is thrown into a whirlwind when his ex-girlfriend interrupts his life with a surprise: their illegitimate toddler son. And when she disappears, it gives him the ultimatum to begrudgingly face fatherhood, or to continue living life void of responsibility.