Pretty sure this code was built/translated by a supervillian. Have just discovered after much confusion that the variable "week" actually refers to the day in the game rather than the week.
Anyway, to unlock "Caprice" who is a new character for this patch you need to first meet the Madison family at the Adams family BBQ.
Then go to Group sessions at the Gym as many times as possible, it takes somewhere around 10 to complete. You will be asked if you want to take Yoga lessons. Say yes. From this point you can visit the Madison house at 5pm, 7pm and 9pm. Caprice's story interactions are at 9pm where you follow the general horny path that the hint tells you.
To unlock the Adams family, you need to visit your pool on a weekend at 9pm at the beginning of the game. From then just keep visiting the Adams house at 9pm and you'll eventually get the BBQ, it's the event that ends with a text choice asking if you want to improve relation with Johnny, the wife or the daughter. Pick is irrelevant to the unlock.
As always, keep look above 70